Dogcows Code - chaz/tint2/blob - src/systray/systraybar.c

   1 /**************************************************************************
   2 * Tint2 : systraybar
   3 *
   4 * Copyright (C) 2009 thierry lorthiois (lorthiois@bbsoft.fr)
   5 * based on 'docker-1.5' from Ben Jansens.
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License version 2
   9 * as published by the Free Software Foundation.
  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 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18 **************************************************************************/
  19
  20 #include <X11/Xlib.h>
  21 #include <X11/Xutil.h>
  22 #include <X11/Xatom.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <glib.h>
  27 #include <Imlib2.h>
  28
  29 #include "systraybar.h"
  30 #include "server.h"
  31 #include "panel.h"
  32
  33 GSList *icons;
  34
  35 /* defined in the systray spec */
  36 #define SYSTEM_TRAY_REQUEST_DOCK    0
  37 #define SYSTEM_TRAY_BEGIN_MESSAGE   1
  38 #define SYSTEM_TRAY_CANCEL_MESSAGE  2
  39
  40 // selection window
  41 Window net_sel_win = None, hint_win = None;
  42
  43 // freedesktop specification doesn't allow multi systray
  44 Systraybar systray;
  45
  46
  47 void init_systray()
  48 {
  49         Panel *panel = &panel1[0];
  50
  51         if (systray.area.on_screen)
  52                 systray.area.on_screen = init_net();
  53
  54         if (!systray.area.on_screen)
  55                 return;
  56
  57         systray.area.parent = panel;
  58         systray.area.panel = panel;
  59         systray.area._resize = resize_systray;
  60
  61         // configure systray
  62         // draw only one systray (even with multi panel)
  63         systray.area.posy = panel->area.pix.border.width + panel->area.paddingy;
  64         systray.area.height = panel->area.height - (2 * systray.area.posy);
  65         systray.area.width = 0;
  66         systray.area.redraw = 1;
  67
  68         systray.area.posx = panel->area.width - panel->area.paddingxlr - panel->area.pix.border.width - systray.area.width;
  69         if (panel->clock.area.on_screen)
  70                 systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
  71 #ifdef ENABLE_BATTERY
  72         if (panel->battery.area.on_screen)
  73                 systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
  74 #endif
  75 }
  76
  77
  78 void cleanup_systray()
  79 {
  80    if (systray.list_icons) {
  81                 GSList *it;
  82
  83                 for (it = systray.list_icons; it; it = it->next)
  84                         remove_icon((TrayWindow*)it->data);
  85
  86       g_slist_free(systray.list_icons);
  87       systray.list_icons = 0;
  88    }
  89
  90         free_area(&systray.area);
  91
  92         cleanup_net();
  93 }
  94
  95
  96 void resize_systray(void *obj)
  97 {
  98         Systraybar *sysbar = obj;
  99         Panel *panel = sysbar->area.panel;
 100         TrayWindow *traywin;
 101         GSList *l;
 102         int count, posx, posy;
 103         int icon_size;
 104
 105         icon_size = sysbar->area.height - (2 * sysbar->area.pix.border.width) - (2 * sysbar->area.paddingy);
 106         count = g_slist_length(systray.list_icons);
 107
 108         if (!count) systray.area.width = 0;
 109         else systray.area.width = (2 * systray.area.pix.border.width) + (2 * systray.area.paddingxlr) + (icon_size * count) + ((count-1) * systray.area.paddingx);
 110
 111         systray.area.posx = panel->area.width - panel->area.pix.border.width - panel->area.paddingxlr - systray.area.width;
 112         if (panel->clock.area.on_screen)
 113                 systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
 114 #ifdef ENABLE_BATTERY
 115         if (panel->battery.area.on_screen)
 116                 systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
 117 #endif
 118
 119         posy = panel->area.pix.border.width + panel->area.paddingy + systray.area.pix.border.width + systray.area.paddingy;
 120         posx = systray.area.posx + systray.area.pix.border.width + systray.area.paddingxlr;
 121         for (l = systray.list_icons; l ; l = l->next) {
 122                 traywin = (TrayWindow*)l->data;
 123
 124                 traywin->y = posy;
 125                 traywin->x = posx;
 126                 traywin->width = icon_size;
 127                 traywin->height = icon_size;
 128                 posx += (icon_size + systray.area.paddingx);
 129
 130                 // position and size the icon window
 131                 XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, icon_size, icon_size);
 132         }
 133         //printf("resize_systray %d %d\n", systray.area.posx, systray.area.width);
 134 }
 135
 136 /*
 137 void create_hint_win()
 138 {
 139    XWMHints hints;
 140    XClassHint classhints;
 141         Panel *panel = systray.area.panel;
 142
 143         hint_win = XCreateSimpleWindow(server.dsp, server.root_win, 0, 0, 1, 1, 0, 0, 0);
 144
 145         hints.flags = StateHint | WindowGroupHint | IconWindowHint;
 146         hints.initial_state = WithdrawnState;
 147         hints.window_group = hint_win;
 148         hints.icon_window = panel->main_win;
 149
 150         classhints.res_name = "docker";
 151         classhints.res_class = "Docker";
 152
 153         XSetWMProperties(server.dsp, hint_win, NULL, NULL, NULL, 0,
 154                                                  NULL, &hints, &classhints);
 155
 156         XMapWindow(server.dsp, hint_win);
 157 }
 158 */
 159
 160 int init_net()
 161 {
 162         if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != None) {
 163                 fprintf(stderr, "tint2 : another systray is running\n");
 164                 return 0;
 165         }
 166
 167         //create_hint_win();
 168
 169         // init systray protocol
 170    net_sel_win = XCreateSimpleWindow(server.dsp, server.root_win, -1, -1, 1, 1, 0, 0, 0);
 171
 172         // v0.2 trayer specification. tint2 always orizontal.
 173         int orient = 0;
 174         XChangeProperty(server.dsp, net_sel_win, server.atom._NET_SYSTEM_TRAY_ORIENTATION, XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &orient, 1);
 175
 176         XSetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN, net_sel_win, CurrentTime);
 177         if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != net_sel_win) {
 178                 fprintf(stderr, "tint2 : can't get systray manager\n");
 179                 return 0;
 180         }
 181
 182    XClientMessageEvent ev;
 183         ev.type = ClientMessage;
 184    ev.window = server.root_win;
 185         ev.message_type = server.atom.MANAGER;
 186         ev.format = 32;
 187         ev.data.l[0] = CurrentTime;
 188         ev.data.l[1] = server.atom._NET_SYSTEM_TRAY_SCREEN;
 189         ev.data.l[2] = net_sel_win;
 190         ev.data.l[3] = 0;
 191         ev.data.l[4] = 0;
 192         XSendEvent(server.dsp, server.root_win, False, StructureNotifyMask, (XEvent*)&ev);
 193         return 1;
 194 }
 195
 196
 197 void cleanup_net()
 198 {
 199         if (net_sel_win != None) {
 200                 XDestroyWindow(server.dsp, net_sel_win);
 201                 net_sel_win = None;
 202         }
 203 }
 204
 205
 206 gboolean error;
 207 int window_error_handler(Display *d, XErrorEvent *e)
 208 {
 209         d=d;e=e;
 210         error = TRUE;
 211         if (e->error_code != BadWindow) {
 212                 printf("error_handler %d\n", e->error_code);
 213         }
 214         return 0;
 215 }
 216
 217
 218 // The traywin must have its id and type set.
 219 gboolean add_icon(Window id)
 220 {
 221         TrayWindow *traywin;
 222         XErrorHandler old;
 223         Panel *panel = systray.area.panel;
 224
 225         error = FALSE;
 226         old = XSetErrorHandler(window_error_handler);
 227         XReparentWindow(server.dsp, id, panel->main_win, 0, 0);
 228         XSync(server.dsp, False);
 229         XSetErrorHandler(old);
 230
 231         if (error != FALSE) {
 232                 fprintf(stderr, "tint2 : not icon_swallow\n");
 233                 return FALSE;
 234         }
 235
 236         traywin = g_new0(TrayWindow, 1);
 237         traywin->id = id;
 238
 239         systray.list_icons = g_slist_prepend(systray.list_icons, traywin);
 240         //printf("ajout d'un icone %d (%lx)\n", g_slist_length(systray.list_icons), id);
 241         systray.area.resize = 1;
 242         systray.area.redraw = 1;
 243
 244         // watch for the icon trying to resize itself!
 245         XSelectInput(server.dsp, traywin->id, StructureNotifyMask);
 246
 247         // show the window
 248         XMapRaised(server.dsp, traywin->id);
 249
 250         // changed in systray force resize on panel
 251         panel->area.resize = 1;
 252         panel_refresh = 1;
 253         return TRUE;
 254 }
 255
 256
 257 void remove_icon(TrayWindow *traywin)
 258 {
 259         XErrorHandler old;
 260
 261         XSelectInput(server.dsp, traywin->id, NoEventMask);
 262
 263         // reparent to root
 264         error = FALSE;
 265         old = XSetErrorHandler(window_error_handler);
 266         XReparentWindow(server.dsp, traywin->id, server.root_win, 0, 0);
 267         XSync(server.dsp, False);
 268         XSetErrorHandler(old);
 269
 270         // remove from our list
 271         systray.list_icons = g_slist_remove(systray.list_icons, traywin);
 272         g_free(traywin);
 273         //printf("suppression d'un icone %d\n", g_slist_length(systray.list_icons));
 274         systray.area.resize = 1;
 275         systray.area.redraw = 1;
 276
 277         // changed in systray force resize on panel
 278         Panel *panel = systray.area.panel;
 279         panel->area.resize = 1;
 280         panel_refresh = 1;
 281
 282 }
 283
 284
 285 void net_message(XClientMessageEvent *e)
 286 {
 287         unsigned long opcode;
 288         Window id;
 289
 290         opcode = e->data.l[1];
 291         switch (opcode) {
 292                 case SYSTEM_TRAY_REQUEST_DOCK:
 293                         id = e->data.l[2];
 294                         if (id) add_icon(id);
 295                         break;
 296
 297                 case SYSTEM_TRAY_BEGIN_MESSAGE:
 298                 case SYSTEM_TRAY_CANCEL_MESSAGE:
 299                         // we don't show baloons messages.
 300                         break;
 301
 302                 default:
 303                         if (opcode == server.atom._NET_SYSTEM_TRAY_MESSAGE_DATA) {
 304                                 printf("message from dockapp: %s\n", e->data.b);
 305                         }
 306                         else
 307                                 printf("SYSTEM_TRAY : unknown message type\n");
 308                         break;
 309         }
 310 }
 311
 312
 313 void refresh_systray()
 314 {
 315         TrayWindow *traywin;
 316         GSList *l;
 317         for (l = systray.list_icons; l ; l = l->next) {
 318                 traywin = (TrayWindow*)l->data;
 319                 XClearArea(server.dsp, traywin->id, 0, 0, traywin->width, traywin->height, True);
 320         }
 321 }
 322
 323