widgets/systray.c

   1 /*
   2  * systray.c - systray widget
   3  *
   4  * Copyright © 2008 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <xcb/xcb.h>
  23 #include <xcb/xcb_atom.h>
  24
  25 #include "widget.h"
  26 #include "screen.h"
  27 #include "common/xembed.h"
  28 #include "common/atoms.h"
  29
  30 #define _NET_SYSTEM_TRAY_ORIENTATION_HORZ 0
  31 #define _NET_SYSTEM_TRAY_ORIENTATION_VERT 1
  32
  33 extern awesome_t globalconf;
  34
  35 static int
  36 systray_draw(draw_context_t *ctx,
  37              int screen __attribute__ ((unused)),
  38              widget_node_t *w,
  39              int offset, int used __attribute__ ((unused)),
  40              void *p,
  41              awesome_type_t type)
  42 {
  43     uint32_t orient;
  44     /* p is always a statusbar, titlebars are forbidden */
  45     statusbar_t *sb = (statusbar_t *) p;
  46
  47     /* we are on a statusbar */
  48     assert(type == AWESOME_TYPE_STATUSBAR);
  49
  50     w->area.height = ctx->height;
  51
  52     if(ctx->width - used > 0)
  53     {
  54         int i = 0;
  55         xembed_window_t *em;
  56         for(em = globalconf.embedded; em; em = em->next)
  57             if(em->phys_screen == sb->phys_screen)
  58                 i++;
  59         /** \todo use clas hints */
  60         w->area.width = MIN(i * ctx->height, ctx->width - used);
  61     }
  62     else
  63         w->area.width = 0;
  64
  65     w->area.x = widget_calculate_offset(ctx->width,
  66                                         w->area.width,
  67                                         offset,
  68                                         w->widget->align);
  69     w->area.y = 0;
  70
  71     switch(sb->position)
  72     {
  73       case Right:
  74       case Left:
  75         orient = _NET_SYSTEM_TRAY_ORIENTATION_VERT;
  76         break;
  77       default:
  78         orient = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
  79         break;
  80     }
  81
  82     /* set statusbar orientation */
  83     /** \todo stop setting that property on each redraw */
  84     xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
  85                         globalconf.screens[sb->phys_screen].systray.window,
  86                         _NET_SYSTEM_TRAY_ORIENTATION, CARDINAL, 32, 1, &orient);
  87
  88     return w->area.width;
  89 }
  90
  91 widget_t *
  92 systray_new(alignment_t align)
  93 {
  94     widget_t *w;
  95
  96     w = p_new(widget_t, 1);
  97     widget_common_new(w);
  98     w->align = align;
  99     w->draw = systray_draw;
 100     w->cache_flags = WIDGET_CACHE_EMBEDDED;
 101
 102     return w;
 103 }
 104 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80