]> git.sur5r.net Git - i3/i3/blobdiff - i3bar/src/xcb.c
Merge branch 'master' into next
[i3/i3] / i3bar / src / xcb.c
index dd6e39dccc00577f661f7d293f79a2020ce425aa..adb4c76dfcb835fe21c2deb0126760a92db4fd35 100644 (file)
@@ -1,16 +1,20 @@
 /*
- * i3bar - an xcb-based status- and ws-bar for i3
- *
- * © 2010-2011 Axel Wagner and contributors
+ * vim:ts=4:sw=4:expandtab
  *
- * See file LICNSE for license information
+ * i3bar - an xcb-based status- and ws-bar for i3
+ * © 2010-2011 Axel Wagner and contributors (see also: LICENSE)
  *
- * src/xcb.c: Communicating with X
+ * xcb.c: Communicating with X
  *
  */
 #include <xcb/xcb.h>
 #include <xcb/xproto.h>
 #include <xcb/xcb_atom.h>
+
+#ifdef XCB_COMPAT
+#include "xcb_compat.h"
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <ev.h>
 #include <errno.h>
 #include <limits.h>
+#include <err.h>
 
 #include <X11/Xlib.h>
 #include <X11/XKBlib.h>
 #include <X11/extensions/XKB.h>
 
 #include "common.h"
-
-#if defined(__APPLE__)
-
-/*
- * Taken from FreeBSD
- * Returns a pointer to a new string which is a duplicate of the
- * string, but only copies at most n characters.
- *
- */
-char *strndup(const char *str, size_t n) {
-    size_t len;
-    char *copy;
-
-    for (len = 0; len < n && str[len]; len++)
-        continue;
-
-    if ((copy = malloc(len + 1)) == NULL)
-        return (NULL);
-    memcpy(copy, str, len);
-    copy[len] = '\0';
-    return (copy);
-}
-
-#endif
+#include "libi3.h"
 
 /* We save the Atoms in an easy to access array, indexed by an enum */
 enum {
@@ -66,12 +48,12 @@ xcb_connection_t *xcb_connection;
 int              screen;
 xcb_screen_t     *xcb_screen;
 xcb_window_t     xcb_root;
-xcb_font_t       xcb_font;
 
-/* We need to cache some data to speed up text-width-prediction */
-xcb_query_font_reply_t *font_info;
-int                    font_height;
-xcb_charinfo_t         *font_table;
+/* This is needed for integration with libi3 */
+xcb_connection_t *conn;
+
+/* The font we'll use */
+static i3Font font;
 
 /* These are only relevant for XKB, which we only need for grabbing modifiers */
 Display          *xkb_dpy;
@@ -97,12 +79,16 @@ struct xcb_colors_t {
     uint32_t bar_bg;
     uint32_t active_ws_fg;
     uint32_t active_ws_bg;
+    uint32_t active_ws_border;
     uint32_t inactive_ws_fg;
     uint32_t inactive_ws_bg;
+    uint32_t inactive_ws_border;
     uint32_t urgent_ws_bg;
     uint32_t urgent_ws_fg;
+    uint32_t urgent_ws_border;
     uint32_t focus_ws_bg;
     uint32_t focus_ws_fg;
+    uint32_t focus_ws_border;
 };
 struct xcb_colors_t colors;
 
@@ -117,113 +103,31 @@ int _xcb_request_failed(xcb_void_cookie_t cookie, char *err_msg, int line) {
     return 0;
 }
 
-/*
- * Predicts the length of text based on cached data.
- * The string has to be encoded in ucs2 and glyph_len has to be the length
- * of the string (in glyphs).
- *
- */
-uint32_t predict_text_extents(xcb_char2b_t *text, uint32_t length) {
-    /* If we don't have per-character data, return the maximum width */
-    if (font_table == NULL) {
-        return (font_info->max_bounds.character_width * length);
-    }
-
-    uint32_t width = 0;
-    uint32_t i;
-
-    for (i = 0; i < length; i++) {
-        xcb_charinfo_t *info;
-        int row = text[i].byte1;
-        int col = text[i].byte2;
-
-        if (row < font_info->min_byte1 || row > font_info->max_byte1 ||
-            col < font_info->min_char_or_byte2 || col > font_info->max_char_or_byte2) {
-            continue;
-        }
-
-        /* Don't you ask me, how this one works… */
-        info = &font_table[((row - font_info->min_byte1) *
-                            (font_info->max_char_or_byte2 - font_info->min_char_or_byte2 + 1)) +
-                           (col - font_info->min_char_or_byte2)];
-
-        if (info->character_width != 0 ||
-            (info->right_side_bearing |
-             info->left_side_bearing |
-             info->ascent |
-             info->descent) != 0) {
-            width += info->character_width;
-        }
-    }
-
-    return width;
-}
-
-/*
- * Draws text given in UCS-2-encoding to a given drawable and position
- *
- */
-void draw_text(xcb_drawable_t drawable, xcb_gcontext_t ctx, int16_t x, int16_t y,
-               xcb_char2b_t *text, uint32_t glyph_count) {
-    int offset = 0;
-    int16_t pos_x = x;
-    int16_t font_ascent = font_info->font_ascent;
-
-    while (glyph_count > 0) {
-        uint8_t chunk_size = MIN(255, glyph_count);
-        uint32_t chunk_width = predict_text_extents(text + offset, chunk_size);
-
-        xcb_image_text_16(xcb_connection,
-                          chunk_size,
-                          drawable,
-                          ctx,
-                          pos_x, y + font_ascent,
-                          text + offset);
-
-        offset += chunk_size;
-        pos_x += chunk_width;
-        glyph_count -= chunk_size;
-    }
-}
-
-/*
- * Converts a colorstring to a colorpixel as expected from xcb_change_gc.
- * s is assumed to be in the format "rrggbb"
- *
- */
-uint32_t get_colorpixel(const char *s) {
-    char strings[3][3] = { { s[0], s[1], '\0'} ,
-                           { s[2], s[3], '\0'} ,
-                           { s[4], s[5], '\0'} };
-    uint8_t r = strtol(strings[0], NULL, 16);
-    uint8_t g = strtol(strings[1], NULL, 16);
-    uint8_t b = strtol(strings[2], NULL, 16);
-    return (r << 16 | g << 8 | b);
-}
-
 /*
  * Redraws the statusline to the buffer
  *
  */
 void refresh_statusline() {
-    int glyph_count;
+    size_t glyph_count;
 
     if (statusline == NULL) {
         return;
     }
 
-    xcb_char2b_t *text = (xcb_char2b_t*) convert_utf8_to_ucs2(statusline, &glyph_count);
+    xcb_char2b_t *text = (xcb_char2b_t*)convert_utf8_to_ucs2(statusline, &glyph_count);
     uint32_t old_statusline_width = statusline_width;
-    statusline_width = predict_text_extents(text, glyph_count);
+    statusline_width = predict_text_width((char*)text, glyph_count, true);
     /* If the statusline is bigger than our screen we need to make sure that
      * the pixmap provides enough space, so re-allocate if the width grew */
     if (statusline_width > xcb_screen->width_in_pixels &&
         statusline_width > old_statusline_width)
         realloc_sl_buffer();
 
-    xcb_rectangle_t rect = { 0, 0, xcb_screen->width_in_pixels, font_height };
+    xcb_rectangle_t rect = { 0, 0, xcb_screen->width_in_pixels, font.height };
     xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_clear, 1, &rect);
-    draw_text(statusline_pm, statusline_ctx, 0, 0, text, glyph_count);
+    set_font_colors(statusline_ctx, colors.bar_fg, colors.bar_bg);
+    draw_text((char*)text, glyph_count, true, statusline_pm, statusline_ctx,
+            0, 0, xcb_screen->width_in_pixels);
 
     FREE(text);
 }
@@ -273,9 +177,11 @@ void unhide_bars() {
                XCB_CONFIG_WINDOW_HEIGHT |
                XCB_CONFIG_WINDOW_STACK_MODE;
         values[0] = walk->rect.x;
-        values[1] = walk->rect.y + walk->rect.h - font_height - 6;
+        if (config.position == POS_TOP)
+            values[1] = walk->rect.y;
+        else values[1] = walk->rect.y + walk->rect.h - font.height - 6;
         values[2] = walk->rect.w;
-        values[3] = font_height + 6;
+        values[3] = font.height + 6;
         values[4] = XCB_STACK_MODE_ABOVE;
         DLOG("Reconfiguring Window for output %s to %d,%d\n", walk->name, values[0], values[1]);
         cookie = xcb_configure_window_checked(xcb_connection,
@@ -299,16 +205,20 @@ void init_colors(const struct xcb_color_strings_t *new_colors) {
     do { \
         colors.name = get_colorpixel(new_colors->name ? new_colors->name : def); \
     } while  (0)
-    PARSE_COLOR(bar_fg, "FFFFFF");
-    PARSE_COLOR(bar_bg, "000000");
-    PARSE_COLOR(active_ws_fg, "FFFFFF");
-    PARSE_COLOR(active_ws_bg, "480000");
-    PARSE_COLOR(inactive_ws_fg, "FFFFFF");
-    PARSE_COLOR(inactive_ws_bg, "240000");
-    PARSE_COLOR(urgent_ws_fg, "FFFFFF");
-    PARSE_COLOR(urgent_ws_bg, "002400");
-    PARSE_COLOR(focus_ws_fg, "FFFFFF");
-    PARSE_COLOR(focus_ws_bg, "480000");
+    PARSE_COLOR(bar_fg, "#FFFFFF");
+    PARSE_COLOR(bar_bg, "#000000");
+    PARSE_COLOR(active_ws_fg, "#FFFFFF");
+    PARSE_COLOR(active_ws_bg, "#333333");
+    PARSE_COLOR(active_ws_border, "#333333");
+    PARSE_COLOR(inactive_ws_fg, "#888888");
+    PARSE_COLOR(inactive_ws_bg, "#222222");
+    PARSE_COLOR(inactive_ws_border, "#333333");
+    PARSE_COLOR(urgent_ws_fg, "#FFFFFF");
+    PARSE_COLOR(urgent_ws_bg, "#900000");
+    PARSE_COLOR(urgent_ws_border, "#2f343a");
+    PARSE_COLOR(focus_ws_fg, "#FFFFFF");
+    PARSE_COLOR(focus_ws_bg, "#285577");
+    PARSE_COLOR(focus_ws_border, "#4c7899");
 #undef PARSE_COLOR
 }
 
@@ -404,11 +314,13 @@ static void configure_trayclients() {
 
         int clients = 0;
         TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
+            if (!trayclient->mapped)
+                continue;
             clients++;
 
             DLOG("Configuring tray window %08x to x=%d\n",
-                 trayclient->win, output->rect.w - (clients * (font_height + 2)));
-            uint32_t x = output->rect.w - (clients * (font_height + 2));
+                 trayclient->win, output->rect.w - (clients * (font.height + 2)));
+            uint32_t x = output->rect.w - (clients * (font.height + 2));
             xcb_configure_window(xcb_connection,
                                  trayclient->win,
                                  XCB_CONFIG_WINDOW_X,
@@ -481,6 +393,9 @@ static void handle_client_message(xcb_client_message_event_t* event) {
             SLIST_FOREACH(walk, outputs, slist) {
                 if (!walk->active)
                     continue;
+                if (config.tray_output &&
+                    strcasecmp(walk->name, config.tray_output) != 0)
+                    continue;
                 DLOG("using output %s\n", walk->name);
                 output = walk;
             }
@@ -491,7 +406,7 @@ static void handle_client_message(xcb_client_message_event_t* event) {
             xcb_reparent_window(xcb_connection,
                                 client,
                                 output->bar,
-                                output->rect.w - font_height - 2,
+                                output->rect.w - font.height - 2,
                                 2);
             /* We reconfigure the window to use a reasonable size. The systray
              * specification explicitly says:
@@ -499,15 +414,15 @@ static void handle_client_message(xcb_client_message_event_t* event) {
              *   should do their best to cope with any size effectively
              */
             mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
-            values[0] = font_height;
-            values[1] = font_height;
+            values[0] = font.height;
+            values[1] = font.height;
             xcb_configure_window(xcb_connection,
                                  client,
                                  mask,
                                  values);
 
             /* send the XEMBED_EMBEDDED_NOTIFY message */
-            void *event = calloc(32, 1);
+            void *event = scalloc(32);
             xcb_client_message_event_t *ev = event;
             ev->response_type = XCB_CLIENT_MESSAGE;
             ev->window = client;
@@ -524,13 +439,20 @@ static void handle_client_message(xcb_client_message_event_t* event) {
                            (char*)ev);
             free(event);
 
+            /* Put the client inside the save set. Upon termination (whether
+             * killed or normal exit does not matter) of i3bar, these clients
+             * will be correctly reparented to their most closest living
+             * ancestor. Without this, tray icons might die when i3bar
+             * exits/crashes. */
+            xcb_change_save_set(xcb_connection, XCB_SET_MODE_INSERT, client);
+
             if (map_it) {
                 DLOG("Mapping dock client\n");
                 xcb_map_window(xcb_connection, client);
             } else {
                 DLOG("Not mapping dock client yet\n");
             }
-            trayclient *tc = malloc(sizeof(trayclient));
+            trayclient *tc = smalloc(sizeof(trayclient));
             tc->win = client;
             tc->mapped = map_it;
             tc->xe_version = xe_version;
@@ -616,8 +538,10 @@ static void handle_property_notify(xcb_property_notify_event_t *event) {
         xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
                                                                    xembedc,
                                                                    NULL);
-        if (xembedr == NULL || xembedr->length == 0)
+        if (xembedr == NULL || xembedr->length == 0) {
+            DLOG("xembed_info unset\n");
             return;
+        }
 
         DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
         uint32_t *xembed = xcb_get_property_value(xembedr);
@@ -629,17 +553,57 @@ static void handle_property_notify(xcb_property_notify_event_t *event) {
             /* need to unmap the window */
             xcb_unmap_window(xcb_connection, trayclient->win);
             trayclient->mapped = map_it;
+            configure_trayclients();
             draw_bars();
         } else if (!trayclient->mapped && map_it) {
             /* need to map the window */
             xcb_map_window(xcb_connection, trayclient->win);
             trayclient->mapped = map_it;
+            configure_trayclients();
             draw_bars();
         }
         free(xembedr);
     }
 }
 
+/*
+ * Handle ConfigureRequests by denying them and sending the client a
+ * ConfigureNotify with its actual size.
+ *
+ */
+static void handle_configure_request(xcb_configure_request_event_t *event) {
+    DLOG("ConfigureRequest for window = %08x\n", event->window);
+
+    trayclient *trayclient;
+    i3_output *output;
+    SLIST_FOREACH(output, outputs, slist) {
+        if (!output->active)
+            continue;
+
+        int clients = 0;
+        TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
+            if (!trayclient->mapped)
+                continue;
+            clients++;
+
+            if (trayclient->win != event->window)
+                continue;
+
+            xcb_rectangle_t rect;
+            rect.x = output->rect.w - (clients * (font.height + 2));
+            rect.y = 2;
+            rect.width = font.height;
+            rect.height = font.height;
+
+            DLOG("This is a tray window. x = %d\n", rect.x);
+            fake_configure_notify(xcb_connection, rect, event->window, 0);
+            return;
+        }
+    }
+
+    DLOG("WARNING: Could not find corresponding tray window.\n");
+}
+
 /*
  * This function is called immediately before the main loop locks. We flush xcb
  * then (and only then)
@@ -657,34 +621,43 @@ void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
  */
 void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
     xcb_generic_event_t *event;
-    while ((event = xcb_poll_for_event(xcb_connection)) == NULL) {
-        return;
+
+    if (xcb_connection_has_error(xcb_connection)) {
+        ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
+        exit(1);
     }
 
-    switch (event->response_type & ~0x80) {
-        case XCB_EXPOSE:
-            /* Expose-events happen, when the window needs to be redrawn */
-            redraw_bars();
-            break;
-        case XCB_BUTTON_PRESS:
-            /* Button-press-events are mouse-buttons clicked on one of our bars */
-            handle_button((xcb_button_press_event_t*) event);
-            break;
-        case XCB_CLIENT_MESSAGE:
-            /* Client messages are used for client-to-client communication, for
-             * example system tray widgets talk to us directly via client messages. */
-            handle_client_message((xcb_client_message_event_t*) event);
-            break;
-        case XCB_UNMAP_NOTIFY:
-            /* UnmapNotifies are received when a tray window unmaps itself */
-            handle_unmap_notify((xcb_unmap_notify_event_t*) event);
-            break;
-        case XCB_PROPERTY_NOTIFY:
-            /* PropertyNotify */
-            handle_property_notify((xcb_property_notify_event_t*) event);
-            break;
+    while ((event = xcb_poll_for_event(xcb_connection)) != NULL) {
+        switch (event->response_type & ~0x80) {
+            case XCB_EXPOSE:
+                /* Expose-events happen, when the window needs to be redrawn */
+                redraw_bars();
+                break;
+            case XCB_BUTTON_PRESS:
+                /* Button-press-events are mouse-buttons clicked on one of our bars */
+                handle_button((xcb_button_press_event_t*) event);
+                break;
+            case XCB_CLIENT_MESSAGE:
+                /* Client messages are used for client-to-client communication, for
+                 * example system tray widgets talk to us directly via client messages. */
+                handle_client_message((xcb_client_message_event_t*) event);
+                break;
+            case XCB_UNMAP_NOTIFY:
+            case XCB_DESTROY_NOTIFY:
+                /* UnmapNotifies are received when a tray window unmaps itself */
+                handle_unmap_notify((xcb_unmap_notify_event_t*) event);
+                break;
+            case XCB_PROPERTY_NOTIFY:
+                /* PropertyNotify */
+                handle_property_notify((xcb_property_notify_event_t*) event);
+                break;
+            case XCB_CONFIGURE_REQUEST:
+                /* ConfigureRequest, sent by a tray child */
+                handle_configure_request((xcb_configure_request_event_t*) event);
+                break;
+        }
+        free(event);
     }
-    FREE(event);
 }
 
 /*
@@ -719,32 +692,62 @@ void xkb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
         }
 
         unsigned int mods = ev.state.mods;
-        modstate = mods & Mod4Mask;
+        modstate = mods & config.modifier;
     }
 
+#define DLOGMOD(modmask, status, barfunc) \
+    do { \
+        switch (modmask) { \
+            case ShiftMask: \
+                DLOG("ShiftMask got " #status "!\n"); \
+                break; \
+            case ControlMask: \
+                DLOG("ControlMask got " #status "!\n"); \
+                break; \
+            case Mod1Mask: \
+                DLOG("Mod1Mask got " #status "!\n"); \
+                break; \
+            case Mod2Mask: \
+                DLOG("Mod2Mask got " #status "!\n"); \
+                break; \
+            case Mod3Mask: \
+                DLOG("Mod3Mask got " #status "!\n"); \
+                break; \
+            case Mod4Mask: \
+                DLOG("Mod4Mask got " #status "!\n"); \
+                break; \
+            case Mod5Mask: \
+                DLOG("Mod5Mask got " #status "!\n"); \
+                break; \
+        } \
+        barfunc(); \
+    } while (0)
+
     if (modstate != mod_pressed) {
         if (modstate == 0) {
-            DLOG("Mod4 got released!\n");
-            hide_bars();
+            DLOGMOD(config.modifier, released, hide_bars);
         } else {
-            DLOG("Mod4 got pressed!\n");
-            unhide_bars();
+            DLOGMOD(config.modifier, pressed, unhide_bars);
         }
         mod_pressed = modstate;
     }
+
+#undef DLOGMOD
 }
 
 /*
- * Initialize xcb and use the specified fontname for text-rendering
+ * Early initialization of the connection to X11: Everything which does not
+ * depend on 'config'.
  *
  */
-char *init_xcb(char *fontname) {
+char *init_xcb_early() {
     /* FIXME: xcb_connect leaks Memory */
     xcb_connection = xcb_connect(NULL, &screen);
     if (xcb_connection_has_error(xcb_connection)) {
         ELOG("Cannot open display\n");
         exit(EXIT_FAILURE);
     }
+    conn = xcb_connection;
     DLOG("Connected to xcb\n");
 
     /* We have to request the atoms we need */
@@ -754,66 +757,10 @@ char *init_xcb(char *fontname) {
     xcb_screen = xcb_setup_roots_iterator(xcb_get_setup(xcb_connection)).data;
     xcb_root = xcb_screen->root;
 
-    /* We load and allocate the font */
-    xcb_font = xcb_generate_id(xcb_connection);
-    xcb_void_cookie_t open_font_cookie;
-    open_font_cookie = xcb_open_font_checked(xcb_connection,
-                                             xcb_font,
-                                             strlen(fontname),
-                                             fontname);
-
-    /* We need to save info about the font, because we need the font's height and
-     * information about the width of characters */
-    xcb_query_font_cookie_t query_font_cookie;
-    query_font_cookie = xcb_query_font(xcb_connection,
-                                       xcb_font);
-
-    /* To grab modifiers without blocking other applications from receiving key-events
-     * involving that modifier, we sadly have to use xkb which is not yet fully supported
-     * in xcb */
-    if (config.hide_on_modifier) {
-        int xkb_major, xkb_minor, xkb_errbase, xkb_err;
-        xkb_major = XkbMajorVersion;
-        xkb_minor = XkbMinorVersion;
-
-        xkb_dpy = XkbOpenDisplay(NULL,
-                                 &xkb_event_base,
-                                 &xkb_errbase,
-                                 &xkb_major,
-                                 &xkb_minor,
-                                 &xkb_err);
-
-        if (xkb_dpy == NULL) {
-            ELOG("No XKB!\n");
-            exit(EXIT_FAILURE);
-        }
-
-        if (fcntl(ConnectionNumber(xkb_dpy), F_SETFD, FD_CLOEXEC) == -1) {
-            ELOG("Could not set FD_CLOEXEC on xkbdpy: %s\n", strerror(errno));
-            exit(EXIT_FAILURE);
-        }
-
-        int i1;
-        if (!XkbQueryExtension(xkb_dpy, &i1, &xkb_event_base, &xkb_errbase, &xkb_major, &xkb_minor)) {
-            ELOG("XKB not supported by X-server!\n");
-            exit(EXIT_FAILURE);
-        }
-
-        if (!XkbSelectEvents(xkb_dpy, XkbUseCoreKbd, XkbStateNotifyMask, XkbStateNotifyMask)) {
-            ELOG("Could not grab Key!\n");
-            exit(EXIT_FAILURE);
-        }
-
-        xkb_io = malloc(sizeof(ev_io));
-        ev_io_init(xkb_io, &xkb_io_cb, ConnectionNumber(xkb_dpy), EV_READ);
-        ev_io_start(main_loop, xkb_io);
-        XFlush(xkb_dpy);
-    }
-
     /* We draw the statusline to a seperate pixmap, because it looks the same on all bars and
      * this way, we can choose to crop it */
     uint32_t mask = XCB_GC_FOREGROUND;
-    uint32_t vals[3] = { colors.bar_bg, colors.bar_bg, xcb_font };
+    uint32_t vals[] = { colors.bar_bg, colors.bar_bg };
 
     statusline_clear = xcb_generate_id(xcb_connection);
     xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
@@ -822,14 +769,12 @@ char *init_xcb(char *fontname) {
                                                                mask,
                                                                vals);
 
-    mask |= XCB_GC_BACKGROUND | XCB_GC_FONT;
-    vals[0] = colors.bar_fg;
     statusline_ctx = xcb_generate_id(xcb_connection);
     xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
                                                             statusline_ctx,
                                                             xcb_root,
-                                                            mask,
-                                                            vals);
+                                                            0,
+                                                            NULL);
 
     statusline_pm = xcb_generate_id(xcb_connection);
     xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
@@ -841,9 +786,9 @@ char *init_xcb(char *fontname) {
 
 
     /* The various Watchers to communicate with xcb */
-    xcb_io = malloc(sizeof(ev_io));
-    xcb_prep = malloc(sizeof(ev_prepare));
-    xcb_chk = malloc(sizeof(ev_check));
+    xcb_io = smalloc(sizeof(ev_io));
+    xcb_prep = smalloc(sizeof(ev_prepare));
+    xcb_chk = smalloc(sizeof(ev_check));
 
     ev_io_init(xcb_io, &xcb_io_cb, xcb_get_file_descriptor(xcb_connection), EV_READ);
     ev_prepare_init(xcb_prep, &xcb_prep_cb);
@@ -876,24 +821,6 @@ char *init_xcb(char *fontname) {
         }
     }
 
-    /* Now we save the font-infos */
-    font_info = xcb_query_font_reply(xcb_connection,
-                                     query_font_cookie,
-                                     NULL);
-
-    if (xcb_request_failed(open_font_cookie, "Could not open font")) {
-        exit(EXIT_FAILURE);
-    }
-
-    font_height = font_info->font_ascent + font_info->font_descent;
-
-    if (xcb_query_font_char_infos_length(font_info) == 0) {
-        font_table = NULL;
-    } else {
-        font_table = xcb_query_font_char_infos(font_info);
-    }
-
-    DLOG("Calculated Font-height: %d\n", font_height);
 
     if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline-buffer") ||
         xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline-buffer-clearcontext") ||
@@ -904,6 +831,65 @@ char *init_xcb(char *fontname) {
     return path;
 }
 
+/*
+ * Initialization which depends on 'config' being usable. Called after the
+ * configuration has arrived.
+ *
+ */
+void init_xcb_late(char *fontname) {
+    if (fontname == NULL)
+        fontname = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
+
+    /* Load the font */
+    font = load_font(fontname, true);
+    set_font(&font);
+    DLOG("Calculated Font-height: %d\n", font.height);
+
+    xcb_flush(xcb_connection);
+
+    /* To grab modifiers without blocking other applications from receiving key-events
+     * involving that modifier, we sadly have to use xkb which is not yet fully supported
+     * in xcb */
+    if (config.hide_on_modifier) {
+        int xkb_major, xkb_minor, xkb_errbase, xkb_err;
+        xkb_major = XkbMajorVersion;
+        xkb_minor = XkbMinorVersion;
+
+        xkb_dpy = XkbOpenDisplay(NULL,
+                                 &xkb_event_base,
+                                 &xkb_errbase,
+                                 &xkb_major,
+                                 &xkb_minor,
+                                 &xkb_err);
+
+        if (xkb_dpy == NULL) {
+            ELOG("No XKB!\n");
+            exit(EXIT_FAILURE);
+        }
+
+        if (fcntl(ConnectionNumber(xkb_dpy), F_SETFD, FD_CLOEXEC) == -1) {
+            ELOG("Could not set FD_CLOEXEC on xkbdpy: %s\n", strerror(errno));
+            exit(EXIT_FAILURE);
+        }
+
+        int i1;
+        if (!XkbQueryExtension(xkb_dpy, &i1, &xkb_event_base, &xkb_errbase, &xkb_major, &xkb_minor)) {
+            ELOG("XKB not supported by X-server!\n");
+            exit(EXIT_FAILURE);
+        }
+
+        if (!XkbSelectEvents(xkb_dpy, XkbUseCoreKbd, XkbStateNotifyMask, XkbStateNotifyMask)) {
+            ELOG("Could not grab Key!\n");
+            exit(EXIT_FAILURE);
+        }
+
+        xkb_io = smalloc(sizeof(ev_io));
+        ev_io_init(xkb_io, &xkb_io_cb, ConnectionNumber(xkb_dpy), EV_READ);
+        ev_io_start(main_loop, xkb_io);
+        XFlush(xkb_dpy);
+    }
+}
+
 /*
  * Initializes tray support by requesting the appropriate _NET_SYSTEM_TRAY atom
  * for the X11 display we are running on, then acquiring the selection for this
@@ -911,6 +897,7 @@ char *init_xcb(char *fontname) {
  *
  */
 void init_tray() {
+    DLOG("Initializing system tray functionality\n");
     /* request the tray manager atom for the X11 display we are running on */
     char atomname[strlen("_NET_SYSTEM_TRAY_S") + 11];
     snprintf(atomname, strlen("_NET_SYSTEM_TRAY_S") + 11, "_NET_SYSTEM_TRAY_S%d", screen);
@@ -975,7 +962,7 @@ void init_tray() {
     }
 
     /* Inform clients waiting for a new _NET_SYSTEM_TRAY that we are here */
-    void *event = calloc(32, 1);
+    void *event = scalloc(32);
     xcb_client_message_event_t *ev = event;
     ev->response_type = XCB_CLIENT_MESSAGE;
     ev->window = xcb_root;
@@ -1030,7 +1017,6 @@ void clean_xcb() {
     FREE(xcb_chk);
     FREE(xcb_prep);
     FREE(xcb_io);
-    FREE(font_info);
 }
 
 /*
@@ -1083,7 +1069,7 @@ void realloc_sl_buffer() {
                                                                xcb_screen->height_in_pixels);
 
     uint32_t mask = XCB_GC_FOREGROUND;
-    uint32_t vals[3] = { colors.bar_bg, colors.bar_bg, xcb_font };
+    uint32_t vals[2] = { colors.bar_bg, colors.bar_bg };
     xcb_free_gc(xcb_connection, statusline_clear);
     statusline_clear = xcb_generate_id(xcb_connection);
     xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
@@ -1092,7 +1078,7 @@ void realloc_sl_buffer() {
                                                                mask,
                                                                vals);
 
-    mask |= XCB_GC_BACKGROUND | XCB_GC_FONT;
+    mask |= XCB_GC_BACKGROUND;
     vals[0] = colors.bar_fg;
     statusline_ctx = xcb_generate_id(xcb_connection);
     xcb_free_gc(xcb_connection, statusline_ctx);
@@ -1117,6 +1103,7 @@ void realloc_sl_buffer() {
 void reconfig_windows() {
     uint32_t mask;
     uint32_t values[5];
+    static bool tray_configured = false;
 
     i3_output *walk;
     SLIST_FOREACH(walk, outputs, slist) {
@@ -1130,9 +1117,6 @@ void reconfig_windows() {
         if (walk->bar == XCB_NONE) {
             DLOG("Creating Window for output %s\n", walk->name);
 
-            /* TODO: only call init_tray() if the tray is configured for this output */
-            init_tray();
-
             walk->bar = xcb_generate_id(xcb_connection);
             walk->buffer = xcb_generate_id(xcb_connection);
             mask = XCB_CW_BACK_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
@@ -1140,8 +1124,14 @@ void reconfig_windows() {
             values[0] = colors.bar_bg;
             /* If hide_on_modifier is set, i3 is not supposed to manage our bar-windows */
             values[1] = config.hide_on_modifier;
-            /* The events we want to receive */
-            values[2] = XCB_EVENT_MASK_EXPOSURE;
+            /* We enable the following EventMask fields:
+             * EXPOSURE, to get expose events (we have to re-draw then)
+             * SUBSTRUCTURE_REDIRECT, to get ConfigureRequests when the tray
+             *                        child windows use ConfigureWindow
+             * BUTTON_PRESS, to handle clicks on the workspace buttons
+             * */
+            values[2] = XCB_EVENT_MASK_EXPOSURE |
+                        XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
             if (!config.disable_ws) {
                 values[2] |= XCB_EVENT_MASK_BUTTON_PRESS;
             }
@@ -1149,8 +1139,8 @@ void reconfig_windows() {
                                                                      xcb_screen->root_depth,
                                                                      walk->bar,
                                                                      xcb_root,
-                                                                     walk->rect.x, walk->rect.y + walk->rect.h - font_height - 6,
-                                                                     walk->rect.w, font_height + 6,
+                                                                     walk->rect.x, walk->rect.y + walk->rect.h - font.height - 6,
+                                                                     walk->rect.w, font.height + 6,
                                                                      1,
                                                                      XCB_WINDOW_CLASS_INPUT_OUTPUT,
                                                                      xcb_screen->root_visual,
@@ -1165,6 +1155,31 @@ void reconfig_windows() {
                                                                     walk->rect.w,
                                                                     walk->rect.h);
 
+            /* Set the WM_CLASS and WM_NAME (we don't need UTF-8) atoms */
+            xcb_void_cookie_t class_cookie;
+            class_cookie = xcb_change_property(xcb_connection,
+                                               XCB_PROP_MODE_REPLACE,
+                                               walk->bar,
+                                               XCB_ATOM_WM_CLASS,
+                                               XCB_ATOM_STRING,
+                                               8,
+                                               (strlen("i3bar") + 1) * 2,
+                                               "i3bar\0i3bar\0");
+
+            char *name;
+            if (asprintf(&name, "i3bar for output %s", walk->name) == -1)
+                err(EXIT_FAILURE, "asprintf()");
+            xcb_void_cookie_t name_cookie;
+            name_cookie = xcb_change_property(xcb_connection,
+                                              XCB_PROP_MODE_REPLACE,
+                                              walk->bar,
+                                              XCB_ATOM_WM_NAME,
+                                              XCB_ATOM_STRING,
+                                              8,
+                                              strlen(name),
+                                              name);
+            free(name);
+
             /* We want dock-windows (for now). When override_redirect is set, i3 is ignoring
              * this one */
             xcb_void_cookie_t dock_cookie = xcb_change_property(xcb_connection,
@@ -1195,16 +1210,16 @@ void reconfig_windows() {
                 uint32_t bottom_start_x;
                 uint32_t bottom_end_x;
             } __attribute__((__packed__)) strut_partial = {0,};
-            switch (config.dockpos) {
-                case DOCKPOS_NONE:
+            switch (config.position) {
+                case POS_NONE:
                     break;
-                case DOCKPOS_TOP:
-                    strut_partial.top = font_height + 6;
+                case POS_TOP:
+                    strut_partial.top = font.height + 6;
                     strut_partial.top_start_x = walk->rect.x;
                     strut_partial.top_end_x = walk->rect.x + walk->rect.w;
                     break;
-                case DOCKPOS_BOT:
-                    strut_partial.bottom = font_height + 6;
+                case POS_BOT:
+                    strut_partial.bottom = font.height + 6;
                     strut_partial.bottom_start_x = walk->rect.x;
                     strut_partial.bottom_end_x = walk->rect.x + walk->rect.w;
                     break;
@@ -1221,13 +1236,11 @@ void reconfig_windows() {
             /* We also want a graphics-context for the bars (it defines the properties
              * with which we draw to them) */
             walk->bargc = xcb_generate_id(xcb_connection);
-            mask = XCB_GC_FONT;
-            values[0] = xcb_font;
             xcb_void_cookie_t gc_cookie = xcb_create_gc_checked(xcb_connection,
                                                                 walk->bargc,
                                                                 walk->bar,
-                                                                mask,
-                                                                values);
+                                                                0,
+                                                                NULL);
 
             /* We finally map the bar (display it on screen), unless the modifier-switch is on */
             xcb_void_cookie_t map_cookie;
@@ -1238,11 +1251,20 @@ void reconfig_windows() {
             if (xcb_request_failed(win_cookie,   "Could not create window") ||
                 xcb_request_failed(pm_cookie,    "Could not create pixmap") ||
                 xcb_request_failed(dock_cookie,  "Could not set dock mode") ||
+                xcb_request_failed(class_cookie, "Could not set WM_CLASS")  ||
+                xcb_request_failed(name_cookie,  "Could not set WM_NAME")   ||
                 xcb_request_failed(strut_cookie, "Could not set strut")     ||
                 xcb_request_failed(gc_cookie,    "Could not create graphical context") ||
                 (!config.hide_on_modifier && xcb_request_failed(map_cookie, "Could not map window"))) {
                 exit(EXIT_FAILURE);
             }
+
+            if (!tray_configured &&
+                (!config.tray_output ||
+                 strcasecmp("none", config.tray_output) != 0)) {
+                init_tray();
+                tray_configured = true;
+            }
         } else {
             /* We already have a bar, so we just reconfigure it */
             mask = XCB_CONFIG_WINDOW_X |
@@ -1251,9 +1273,9 @@ void reconfig_windows() {
                    XCB_CONFIG_WINDOW_HEIGHT |
                    XCB_CONFIG_WINDOW_STACK_MODE;
             values[0] = walk->rect.x;
-            values[1] = walk->rect.y + walk->rect.h - font_height - 6;
+            values[1] = walk->rect.y + walk->rect.h - font.height - 6;
             values[2] = walk->rect.w;
-            values[3] = font_height + 6;
+            values[3] = font.height + 6;
             values[4] = XCB_STACK_MODE_ABOVE;
 
             DLOG("Destroying buffer for output %s", walk->name);
@@ -1309,7 +1331,7 @@ void draw_bars() {
                       outputs_walk->bargc,
                       XCB_GC_FOREGROUND,
                       &color);
-        xcb_rectangle_t rect = { 0, 0, outputs_walk->rect.w, font_height + 6 };
+        xcb_rectangle_t rect = { 0, 0, outputs_walk->rect.w, font.height + 6 };
         xcb_poly_fill_rectangle(xcb_connection,
                                 outputs_walk->buffer,
                                 outputs_walk->bargc,
@@ -1330,7 +1352,7 @@ void draw_bars() {
                 /* We assume the tray icons are quadratic (we use the font
                  * *height* as *width* of the icons) because we configured them
                  * like this. */
-                traypx += font_height;
+                traypx += font.height + 2;
             }
             /* Add 2px of padding if there are any tray icons */
             if (traypx > 0)
@@ -1341,7 +1363,7 @@ void draw_bars() {
                           outputs_walk->bargc,
                           MAX(0, (int16_t)(statusline_width - outputs_walk->rect.w + 4)), 0,
                           MAX(0, (int16_t)(outputs_walk->rect.w - statusline_width - traypx - 4)), 3,
-                          MIN(outputs_walk->rect.w - traypx - 4, statusline_width), font_height);
+                          MIN(outputs_walk->rect.w - traypx - 4, statusline_width), font.height);
         }
 
         if (config.disable_ws) {
@@ -1353,45 +1375,53 @@ void draw_bars() {
             DLOG("Drawing Button for WS %s at x = %d\n", ws_walk->name, i);
             uint32_t fg_color = colors.inactive_ws_fg;
             uint32_t bg_color = colors.inactive_ws_bg;
+            uint32_t border_color = colors.inactive_ws_border;
             if (ws_walk->visible) {
                 if (!ws_walk->focused) {
                     fg_color = colors.active_ws_fg;
                     bg_color = colors.active_ws_bg;
+                    border_color = colors.active_ws_border;
                 } else {
                     fg_color = colors.focus_ws_fg;
                     bg_color = colors.focus_ws_bg;
+                    border_color = colors.focus_ws_border;
                 }
             }
             if (ws_walk->urgent) {
                 DLOG("WS %s is urgent!\n", ws_walk->name);
                 fg_color = colors.urgent_ws_fg;
                 bg_color = colors.urgent_ws_bg;
+                border_color = colors.urgent_ws_border;
                 /* The urgent-hint should get noticed, so we unhide the bars shortly */
                 unhide_bars();
             }
             uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
+            uint32_t vals_border[] = { border_color, border_color };
+            xcb_change_gc(xcb_connection,
+                          outputs_walk->bargc,
+                          mask,
+                          vals_border);
+            xcb_rectangle_t rect_border = { i + 1, 0, ws_walk->name_width + 10, font.height + 4 };
+            xcb_poly_fill_rectangle(xcb_connection,
+                                    outputs_walk->buffer,
+                                    outputs_walk->bargc,
+                                    1,
+                                    &rect_border);
             uint32_t vals[] = { bg_color, bg_color };
             xcb_change_gc(xcb_connection,
                           outputs_walk->bargc,
                           mask,
                           vals);
-            xcb_rectangle_t rect = { i + 1, 1, ws_walk->name_width + 8, font_height + 4 };
+            xcb_rectangle_t rect = { i + 2, 1, ws_walk->name_width + 8, font.height + 2 };
             xcb_poly_fill_rectangle(xcb_connection,
                                     outputs_walk->buffer,
                                     outputs_walk->bargc,
                                     1,
                                     &rect);
-            xcb_change_gc(xcb_connection,
-                          outputs_walk->bargc,
-                          XCB_GC_FOREGROUND,
-                          &fg_color);
-            xcb_image_text_16(xcb_connection,
-                              ws_walk->name_glyphs,
-                              outputs_walk->buffer,
-                              outputs_walk->bargc,
-                              i + 5, font_info->font_ascent + 2,
-                              ws_walk->ucs2_name);
-            i += 10 + ws_walk->name_width;
+            set_font_colors(outputs_walk->bargc, fg_color, bg_color);
+            draw_text((char*)ws_walk->ucs2_name, ws_walk->name_glyphs, true,
+                    outputs_walk->buffer, outputs_walk->bargc, i + 6, 2, ws_walk->name_width);
+            i += 12 + ws_walk->name_width;
         }
 
         i = 0;