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 int refresh_systray;
  46
  47
  48 void init_systray()
  49 {
  50         Panel *panel = &panel1[0];
  51
  52         if (systray.area.on_screen)
  53                 systray.area.on_screen = init_net();
  54
  55         if (!systray.area.on_screen)
  56                 return;
  57
  58         systray.area.parent = panel;
  59         systray.area.panel = panel;
  60         systray.area._draw_foreground = draw_systray;
  61         systray.area._resize = resize_systray;
  62         refresh_systray = 0;
  63
  64         // configure systray
  65         // draw only one systray (even with multi panel)
  66         systray.area.posy = panel->area.pix.border.width + panel->area.paddingy;
  67         systray.area.height = panel->area.height - (2 * systray.area.posy);
  68         systray.area.width = 0;
  69         systray.area.redraw = 1;
  70
  71         systray.area.posx = panel->area.width - panel->area.paddingxlr - panel->area.pix.border.width - systray.area.width;
  72         if (panel->clock.area.on_screen)
  73                 systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
  74 #ifdef ENABLE_BATTERY
  75         if (panel->battery.area.on_screen)
  76                 systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
  77 #endif
  78 }
  79
  80
  81 void cleanup_systray()
  82 {
  83    if (systray.list_icons) {
  84                 GSList *it;
  85
  86                 for (it = systray.list_icons; it; it = it->next)
  87                         remove_icon((TrayWindow*)it->data);
  88
  89       g_slist_free(systray.list_icons);
  90       systray.list_icons = 0;
  91    }
  92
  93         free_area(&systray.area);
  94
  95         cleanup_net();
  96 }
  97
  98
  99 void draw_systray(void *obj, cairo_t *c, int active)
 100 {
 101         // tint2 don't draw systray icons. just the background.
 102         refresh_systray = 1;
 103 }
 104
 105
 106 void resize_systray(void *obj)
 107 {
 108         Systraybar *sysbar = obj;
 109         Panel *panel = sysbar->area.panel;
 110         TrayWindow *traywin;
 111         GSList *l;
 112         int count, posx, posy;
 113         int icon_size;
 114
 115         icon_size = sysbar->area.height - (2 * sysbar->area.pix.border.width) - (2 * sysbar->area.paddingy);
 116         count = g_slist_length(systray.list_icons);
 117
 118         if (!count) systray.area.width = 0;
 119         else systray.area.width = (2 * systray.area.pix.border.width) + (2 * systray.area.paddingxlr) + (icon_size * count) + ((count-1) * systray.area.paddingx);
 120
 121         systray.area.posx = panel->area.width - panel->area.pix.border.width - panel->area.paddingxlr - systray.area.width;
 122         if (panel->clock.area.on_screen)
 123                 systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
 124 #ifdef ENABLE_BATTERY
 125         if (panel->battery.area.on_screen)
 126                 systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
 127 #endif
 128
 129         posy = panel->area.pix.border.width + panel->area.paddingy + systray.area.pix.border.width + systray.area.paddingy;
 130         posx = systray.area.posx + systray.area.pix.border.width + systray.area.paddingxlr;
 131         for (l = systray.list_icons; l ; l = l->next) {
 132                 traywin = (TrayWindow*)l->data;
 133
 134                 traywin->y = posy;
 135                 traywin->x = posx;
 136                 traywin->width = icon_size;
 137                 traywin->height = icon_size;
 138                 posx += (icon_size + systray.area.paddingx);
 139
 140                 // position and size the icon window
 141                 XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, icon_size, icon_size);
 142         }
 143         //printf("resize_systray %d %d\n", systray.area.posx, systray.area.width);
 144 }
 145
 146 /*
 147 void create_hint_win()
 148 {
 149    XWMHints hints;
 150    XClassHint classhints;
 151         Panel *panel = systray.area.panel;
 152
 153         hint_win = XCreateSimpleWindow(server.dsp, server.root_win, 0, 0, 1, 1, 0, 0, 0);
 154
 155         hints.flags = StateHint | WindowGroupHint | IconWindowHint;
 156         hints.initial_state = WithdrawnState;
 157         hints.window_group = hint_win;
 158         hints.icon_window = panel->main_win;
 159
 160         classhints.res_name = "docker";
 161         classhints.res_class = "Docker";
 162
 163         XSetWMProperties(server.dsp, hint_win, NULL, NULL, NULL, 0,
 164                                                  NULL, &hints, &classhints);
 165
 166         XMapWindow(server.dsp, hint_win);
 167 }
 168 */
 169
 170 int init_net()
 171 {
 172         if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != None) {
 173                 fprintf(stderr, "tint2 : another systray is running\n");
 174                 return 0;
 175         }
 176
 177         //create_hint_win();
 178
 179         // init systray protocol
 180    net_sel_win = XCreateSimpleWindow(server.dsp, server.root_win, -1, -1, 1, 1, 0, 0, 0);
 181
 182         // v0.2 trayer specification. tint2 always orizontal.
 183         int orient = 0;
 184         XChangeProperty(server.dsp, net_sel_win, server.atom._NET_SYSTEM_TRAY_ORIENTATION, XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &orient, 1);
 185
 186         XSetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN, net_sel_win, CurrentTime);
 187         if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != net_sel_win) {
 188                 fprintf(stderr, "tint2 : can't get systray manager\n");
 189                 return 0;
 190         }
 191
 192    XClientMessageEvent ev;
 193         ev.type = ClientMessage;
 194    ev.window = server.root_win;
 195         ev.message_type = server.atom.MANAGER;
 196         ev.format = 32;
 197         ev.data.l[0] = CurrentTime;
 198         ev.data.l[1] = server.atom._NET_SYSTEM_TRAY_SCREEN;
 199         ev.data.l[2] = net_sel_win;
 200         ev.data.l[3] = 0;
 201         ev.data.l[4] = 0;
 202         XSendEvent(server.dsp, server.root_win, False, StructureNotifyMask, (XEvent*)&ev);
 203         return 1;
 204 }
 205
 206
 207 void cleanup_net()
 208 {
 209         if (net_sel_win != None) {
 210                 XDestroyWindow(server.dsp, net_sel_win);
 211                 net_sel_win = None;
 212         }
 213 }
 214
 215
 216 gboolean error;
 217 int window_error_handler(Display *d, XErrorEvent *e)
 218 {
 219         d=d;e=e;
 220         error = TRUE;
 221         if (e->error_code != BadWindow) {
 222                 printf("error_handler %d\n", e->error_code);
 223         }
 224         return 0;
 225 }
 226
 227
 228 // The traywin must have its id and type set.
 229 gboolean add_icon(Window id)
 230 {
 231         TrayWindow *traywin;
 232         XErrorHandler old;
 233         Panel *panel = systray.area.panel;
 234
 235         error = FALSE;
 236         old = XSetErrorHandler(window_error_handler);
 237         XReparentWindow(server.dsp, id, panel->main_win, 0, 0);
 238         XSync(server.dsp, False);
 239         XSetErrorHandler(old);
 240
 241         if (error != FALSE) {
 242                 fprintf(stderr, "tint2 : not icon_swallow\n");
 243                 return FALSE;
 244         }
 245
 246         traywin = g_new0(TrayWindow, 1);
 247         traywin->id = id;
 248
 249         systray.list_icons = g_slist_prepend(systray.list_icons, traywin);
 250         //printf("ajout d'un icone %d (%lx)\n", g_slist_length(systray.list_icons), id);
 251         systray.area.resize = 1;
 252         systray.area.redraw = 1;
 253
 254         // watch for the icon trying to resize itself!
 255         XSelectInput(server.dsp, traywin->id, StructureNotifyMask);
 256
 257         // show the window
 258         XMapRaised(server.dsp, traywin->id);
 259
 260         // changed in systray force resize on panel
 261         panel->area.resize = 1;
 262         panel_refresh = 1;
 263         return TRUE;
 264 }
 265
 266
 267 void remove_icon(TrayWindow *traywin)
 268 {
 269         XErrorHandler old;
 270
 271         XSelectInput(server.dsp, traywin->id, NoEventMask);
 272
 273         // reparent to root
 274         error = FALSE;
 275         old = XSetErrorHandler(window_error_handler);
 276         XReparentWindow(server.dsp, traywin->id, server.root_win, 0, 0);
 277         XSync(server.dsp, False);
 278         XSetErrorHandler(old);
 279
 280         // remove from our list
 281         systray.list_icons = g_slist_remove(systray.list_icons, traywin);
 282         g_free(traywin);
 283         //printf("suppression d'un icone %d\n", g_slist_length(systray.list_icons));
 284         systray.area.resize = 1;
 285         systray.area.redraw = 1;
 286
 287         // changed in systray force resize on panel
 288         Panel *panel = systray.area.panel;
 289         panel->area.resize = 1;
 290         panel_refresh = 1;
 291
 292 }
 293
 294
 295 void net_message(XClientMessageEvent *e)
 296 {
 297         unsigned long opcode;
 298         Window id;
 299
 300         opcode = e->data.l[1];
 301         switch (opcode) {
 302                 case SYSTEM_TRAY_REQUEST_DOCK:
 303                         id = e->data.l[2];
 304                         if (id) add_icon(id);
 305                         break;
 306
 307                 case SYSTEM_TRAY_BEGIN_MESSAGE:
 308                 case SYSTEM_TRAY_CANCEL_MESSAGE:
 309                         // we don't show baloons messages.
 310                         break;
 311
 312                 default:
 313                         if (opcode == server.atom._NET_SYSTEM_TRAY_MESSAGE_DATA) {
 314                                 printf("message from dockapp: %s\n", e->data.b);
 315                         }
 316                         else
 317                                 printf("SYSTEM_TRAY : unknown message type\n");
 318                         break;
 319         }
 320 }
 321
 322
 323 void refresh_systray_icon()
 324 {
 325         TrayWindow *traywin;
 326         GSList *l;
 327         for (l = systray.list_icons; l ; l = l->next) {
 328                 traywin = (TrayWindow*)l->data;
 329                 XClearArea(server.dsp, traywin->id, 0, 0, traywin->width, traywin->height, True);
 330         }
 331 }
 332
 333