systray.c

   1 /*
   2  * systray.c - systray handling
   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_icccm.h>
  24 #include <xcb/xcb_atom.h>
  25
  26 #include "systray.h"
  27 #include "window.h"
  28 #include "widget.h"
  29 #include "common/atoms.h"
  30
  31 #define SYSTEM_TRAY_REQUEST_DOCK 0 /* Begin icon docking */
  32
  33 extern awesome_t globalconf;
  34
  35 void
  36 systray_init(int phys_screen)
  37 {
  38     xcb_client_message_event_t ev;
  39     xcb_screen_t *xscreen = xutil_screen_get(globalconf.connection, phys_screen);
  40     char atom_name[22];
  41     xcb_intern_atom_cookie_t atom_systray_q;
  42     xcb_intern_atom_reply_t *atom_systray_r;
  43     xcb_atom_t atom_systray;
  44     ssize_t len;
  45
  46     /* Send requests */
  47     len = snprintf(atom_name, sizeof(atom_name), "_NET_SYSTEM_TRAY_S%d", phys_screen);
  48     atom_systray_q = xcb_intern_atom_unchecked(globalconf.connection, false, len, atom_name);
  49
  50     globalconf.screens[phys_screen].systray.window = xcb_generate_id(globalconf.connection);
  51     xcb_create_window(globalconf.connection, xscreen->root_depth,
  52                       globalconf.screens[phys_screen].systray.window,
  53                       xscreen->root,
  54                       -1, -1, 1, 1, 0,
  55                       XCB_COPY_FROM_PARENT, xscreen->root_visual, 0, NULL);
  56
  57     /* Fill event */
  58     p_clear(&ev, 1);
  59     ev.response_type = XCB_CLIENT_MESSAGE;
  60     ev.window = xscreen->root;
  61     ev.format = 32;
  62     ev.type = MANAGER;
  63     ev.data.data32[0] = XCB_CURRENT_TIME;
  64     ev.data.data32[2] = globalconf.screens[phys_screen].systray.window;
  65     ev.data.data32[3] = ev.data.data32[4] = 0;
  66
  67     if(!(atom_systray_r = xcb_intern_atom_reply(globalconf.connection, atom_systray_q, NULL)))
  68     {
  69         warn("error getting systray atom");
  70         return;
  71     }
  72
  73     ev.data.data32[1] = atom_systray = atom_systray_r->atom;
  74
  75     p_delete(&atom_systray_r);
  76
  77     xcb_set_selection_owner(globalconf.connection,
  78                             globalconf.screens[phys_screen].systray.window,
  79                             atom_systray,
  80                             XCB_CURRENT_TIME);
  81
  82     xcb_send_event(globalconf.connection, false, xscreen->root, 0xFFFFFF, (char *) &ev);
  83 }
  84
  85 /** Handle a systray request.
  86  * \param embed_win The window to embed.
  87  */
  88 int
  89 systray_request_handle(xcb_window_t embed_win, int phys_screen, xembed_info_t *info)
  90 {
  91     xembed_window_t *em;
  92     xcb_get_property_cookie_t em_cookie;
  93     int i;
  94     const uint32_t select_input_val[] =
  95     {
  96         XCB_EVENT_MASK_STRUCTURE_NOTIFY
  97             | XCB_EVENT_MASK_PROPERTY_CHANGE
  98             | XCB_EVENT_MASK_ENTER_WINDOW
  99     };
 100
 101     /* check if not already trayed */
 102     if((em = xembed_getbywin(globalconf.embedded, embed_win)))
 103         return -1;
 104
 105     p_clear(&em_cookie, 1);
 106
 107     if(!info)
 108         em_cookie = xembed_info_get_unchecked(globalconf.connection, embed_win);
 109
 110     xcb_change_window_attributes(globalconf.connection, embed_win, XCB_CW_EVENT_MASK,
 111                                  select_input_val);
 112     window_state_set(embed_win, XCB_WM_WITHDRAWN_STATE);
 113
 114     em = p_new(xembed_window_t, 1);
 115     em->win = embed_win;
 116     em->phys_screen = phys_screen;
 117
 118     xembed_window_list_append(&globalconf.embedded, em);
 119
 120     if(info)
 121         em->info = *info;
 122     else
 123         xembed_info_get_reply(globalconf.connection, em_cookie, &em->info);
 124
 125     xembed_embedded_notify(globalconf.connection, em->win,
 126                            globalconf.screens[phys_screen].systray.window,
 127                            MIN(XEMBED_VERSION, em->info.version));
 128
 129     for(i = 0; i < globalconf.screens_info->nscreen; i++)
 130         widget_invalidate_cache(i, WIDGET_CACHE_EMBEDDED);
 131
 132     return 0;
 133 }
 134
 135 /** Handle systray message.
 136  * \param ev The event.
 137  * \return 0 on no error.
 138  */
 139 int
 140 systray_process_client_message(xcb_client_message_event_t *ev)
 141 {
 142     int screen_nbr = 0, ret = 0;
 143     xcb_get_geometry_cookie_t geom_c;
 144     xcb_get_geometry_reply_t *geom_r;
 145     xcb_screen_iterator_t iter;
 146
 147     switch(ev->data.data32[1])
 148     {
 149       case SYSTEM_TRAY_REQUEST_DOCK:
 150         geom_c = xcb_get_geometry_unchecked(globalconf.connection, ev->window);
 151
 152         if(!(geom_r = xcb_get_geometry_reply(globalconf.connection, geom_c, NULL)))
 153             return -1;
 154
 155         for(iter = xcb_setup_roots_iterator(xcb_get_setup(globalconf.connection)), screen_nbr = 0;
 156             iter.rem && iter.data->root != geom_r->root; xcb_screen_next (&iter), ++screen_nbr);
 157
 158         p_delete(&geom_r);
 159
 160         ret = systray_request_handle(ev->data.data32[2], screen_nbr, NULL);
 161         break;
 162     }
 163
 164     return ret;
 165 }
 166
 167 /** Check if a window is a KDE tray.
 168  * \param w The window to check.
 169  * \return True if it is, false otherwise.
 170  */
 171 bool
 172 systray_iskdedockapp(xcb_window_t w)
 173 {
 174     xcb_get_property_cookie_t kde_check_q;
 175     xcb_get_property_reply_t *kde_check;
 176     bool ret;
 177
 178     /* Check if that is a KDE tray because it does not repect fdo standards,
 179      * thanks KDE. */
 180     kde_check_q = xcb_get_property_unchecked(globalconf.connection, false, w,
 181                                              _KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR,
 182                                              WINDOW, 0, 1);
 183
 184     kde_check = xcb_get_property_reply(globalconf.connection, kde_check_q, NULL);
 185
 186     /* it's a KDE systray ?*/
 187     ret = (kde_check && kde_check->value_len);
 188
 189     p_delete(&kde_check);
 190
 191     return ret;
 192 }
 193
 194 /** Handle xembed client message.
 195  * \param ev The event.
 196  * \return 0 on no error.
 197  */
 198 int
 199 xembed_process_client_message(xcb_client_message_event_t *ev)
 200 {
 201     switch(ev->data.data32[1])
 202     {
 203       case XEMBED_REQUEST_FOCUS:
 204         xembed_focus_in(globalconf.connection, ev->window, XEMBED_FOCUS_CURRENT);
 205         break;
 206     }
 207     return 0;
 208 }
 209
 210 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80