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         systray.area.resize = 1;
  63         systray.area.redraw = 1;
  64         refresh_systray = 0;
  65
  66         // configure systray
  67         // draw only one systray (even with multi panel)
  68         if (panel_horizontal) {
  69                 systray.area.posy = panel->area.pix.border.width + panel->area.paddingy;
  70                 systray.area.height = panel->area.height - (2 * systray.area.posy);
  71         }
  72         else {
  73                 systray.area.posx = panel->area.pix.border.width + panel->area.paddingy;
  74                 systray.area.width = panel->area.width - (2 * panel->area.pix.border.width) - (2 * panel->area.paddingy);
  75         }
  76 }
  77
  78
  79 void cleanup_systray()
  80 {
  81    if (systray.list_icons) {
  82                 GSList *it;
  83
  84                 for (it = systray.list_icons; it; it = it->next)
  85                         remove_icon((TrayWindow*)it->data);
  86
  87       g_slist_free(systray.list_icons);
  88       systray.list_icons = 0;
  89    }
  90
  91         free_area(&systray.area);
  92         cleanup_net();
  93 }
  94
  95
  96 void draw_systray(void *obj, cairo_t *c, int active)
  97 {
  98         // tint2 don't draw systray icons. just the background.
  99         refresh_systray = 1;
 100 }
 101
 102
 103 void resize_systray(void *obj)
 104 {
 105         Systraybar *sysbar = obj;
 106         Panel *panel = sysbar->area.panel;
 107         TrayWindow *traywin;
 108         GSList *l;
 109         int count, posx, posy;
 110         int icon_size;
 111
 112         if (panel_horizontal)
 113                 icon_size = sysbar->area.height;
 114         else
 115                 icon_size = sysbar->area.width;
 116         icon_size = icon_size - (2 * sysbar->area.pix.border.width) - (2 * sysbar->area.paddingy);
 117         count = g_slist_length(systray.list_icons);
 118
 119         if (panel_horizontal) {
 120                 if (!count) systray.area.width = 0;
 121                 else systray.area.width = (2 * systray.area.pix.border.width) + (2 * systray.area.paddingxlr) + (icon_size * count) + ((count-1) * systray.area.paddingx);
 122
 123                 systray.area.posx = panel->area.width - panel->area.pix.border.width - panel->area.paddingxlr - systray.area.width;
 124                 if (panel->clock.area.on_screen)
 125                         systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
 126 #ifdef ENABLE_BATTERY
 127                 if (panel->battery.area.on_screen)
 128                         systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
 129 #endif
 130         }
 131         else {
 132                 if (!count) systray.area.height = 0;
 133                 else systray.area.height = (2 * systray.area.pix.border.width) + (2 * systray.area.paddingxlr) + (icon_size * count) + ((count-1) * systray.area.paddingx);
 134
 135                 systray.area.posy = panel->area.pix.border.width + panel->area.paddingxlr;
 136                 if (panel->clock.area.on_screen)
 137                         systray.area.posy += (panel->clock.area.height + panel->area.paddingx);
 138 #ifdef ENABLE_BATTERY
 139                 if (panel->battery.area.on_screen)
 140                         systray.area.posy += (panel->battery.area.height + panel->area.paddingx);
 141 #endif
 142         }
 143
 144         if (panel_horizontal) {
 145                 posy = panel->area.pix.border.width + panel->area.paddingy + systray.area.pix.border.width + systray.area.paddingy;
 146                 posx = systray.area.posx + systray.area.pix.border.width + systray.area.paddingxlr;
 147         }
 148         else {
 149                 posx = panel->area.pix.border.width + panel->area.paddingy + systray.area.pix.border.width + systray.area.paddingy;
 150                 posy = systray.area.posy + systray.area.pix.border.width + systray.area.paddingxlr;
 151         }
 152         for (l = systray.list_icons; l ; l = l->next) {
 153                 traywin = (TrayWindow*)l->data;
 154
 155                 traywin->y = posy;
 156                 traywin->x = posx;
 157                 traywin->width = icon_size;
 158                 traywin->height = icon_size;
 159                 if (panel_horizontal)
 160                         posx += (icon_size + systray.area.paddingx);
 161                 else
 162                         posy += (icon_size + systray.area.paddingx);
 163
 164                 // position and size the icon window
 165                 XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, icon_size, icon_size);
 166         }
 167         //printf("resize_systray %d %d\n", systray.area.posx, systray.area.width);
 168 }
 169
 170 /*
 171 void create_hint_win()
 172 {
 173    XWMHints hints;
 174    XClassHint classhints;
 175         Panel *panel = systray.area.panel;
 176
 177         hint_win = XCreateSimpleWindow(server.dsp, server.root_win, 0, 0, 1, 1, 0, 0, 0);
 178
 179         hints.flags = StateHint | WindowGroupHint | IconWindowHint;
 180         hints.initial_state = WithdrawnState;
 181         hints.window_group = hint_win;
 182         hints.icon_window = panel->main_win;
 183
 184         classhints.res_name = "docker";
 185         classhints.res_class = "Docker";
 186
 187         XSetWMProperties(server.dsp, hint_win, NULL, NULL, NULL, 0,
 188                                                  NULL, &hints, &classhints);
 189
 190         XMapWindow(server.dsp, hint_win);
 191 }
 192 */
 193
 194 int init_net()
 195 {
 196         if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != None) {
 197                 fprintf(stderr, "tint2 : another systray is running\n");
 198                 return 0;
 199         }
 200
 201         //create_hint_win();
 202
 203         // init systray protocol
 204    net_sel_win = XCreateSimpleWindow(server.dsp, server.root_win, -1, -1, 1, 1, 0, 0, 0);
 205
 206         // v0.2 trayer specification. tint2 always orizontal.
 207         int orient = 0;
 208         XChangeProperty(server.dsp, net_sel_win, server.atom._NET_SYSTEM_TRAY_ORIENTATION, XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &orient, 1);
 209
 210         XSetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN, net_sel_win, CurrentTime);
 211         if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != net_sel_win) {
 212                 fprintf(stderr, "tint2 : can't get systray manager\n");
 213                 return 0;
 214         }
 215
 216    XClientMessageEvent ev;
 217         ev.type = ClientMessage;
 218    ev.window = server.root_win;
 219         ev.message_type = server.atom.MANAGER;
 220         ev.format = 32;
 221         ev.data.l[0] = CurrentTime;
 222         ev.data.l[1] = server.atom._NET_SYSTEM_TRAY_SCREEN;
 223         ev.data.l[2] = net_sel_win;
 224         ev.data.l[3] = 0;
 225         ev.data.l[4] = 0;
 226         XSendEvent(server.dsp, server.root_win, False, StructureNotifyMask, (XEvent*)&ev);
 227         return 1;
 228 }
 229
 230
 231 void cleanup_net()
 232 {
 233         if (net_sel_win != None) {
 234                 XDestroyWindow(server.dsp, net_sel_win);
 235                 net_sel_win = None;
 236         }
 237 }
 238
 239
 240 gboolean error;
 241 int window_error_handler(Display *d, XErrorEvent *e)
 242 {
 243         d=d;e=e;
 244         error = TRUE;
 245         if (e->error_code != BadWindow) {
 246                 printf("error_handler %d\n", e->error_code);
 247         }
 248         return 0;
 249 }
 250
 251
 252 // The traywin must have its id and type set.
 253 gboolean add_icon(Window id)
 254 {
 255         TrayWindow *traywin;
 256         XErrorHandler old;
 257         Panel *panel = systray.area.panel;
 258
 259         error = FALSE;
 260         old = XSetErrorHandler(window_error_handler);
 261         XReparentWindow(server.dsp, id, panel->main_win, 0, 0);
 262         XSync(server.dsp, False);
 263         XSetErrorHandler(old);
 264
 265         if (error != FALSE) {
 266                 fprintf(stderr, "tint2 : not icon_swallow\n");
 267                 return FALSE;
 268         }
 269
 270         traywin = g_new0(TrayWindow, 1);
 271         traywin->id = id;
 272
 273         systray.list_icons = g_slist_prepend(systray.list_icons, traywin);
 274         //printf("ajout d'un icone %d (%lx)\n", g_slist_length(systray.list_icons), id);
 275         systray.area.resize = 1;
 276         systray.area.redraw = 1;
 277
 278         // watch for the icon trying to resize itself!
 279         XSelectInput(server.dsp, traywin->id, StructureNotifyMask);
 280
 281         // show the window
 282         XMapRaised(server.dsp, traywin->id);
 283
 284         // changed in systray force resize on panel
 285         panel->area.resize = 1;
 286         panel_refresh = 1;
 287         return TRUE;
 288 }
 289
 290
 291 void remove_icon(TrayWindow *traywin)
 292 {
 293         XErrorHandler old;
 294
 295         XSelectInput(server.dsp, traywin->id, NoEventMask);
 296
 297         // reparent to root
 298         error = FALSE;
 299         old = XSetErrorHandler(window_error_handler);
 300         XReparentWindow(server.dsp, traywin->id, server.root_win, 0, 0);
 301         XSync(server.dsp, False);
 302         XSetErrorHandler(old);
 303
 304         // remove from our list
 305         systray.list_icons = g_slist_remove(systray.list_icons, traywin);
 306         g_free(traywin);
 307         //printf("suppression d'un icone %d\n", g_slist_length(systray.list_icons));
 308         systray.area.resize = 1;
 309         systray.area.redraw = 1;
 310
 311         // changed in systray force resize on panel
 312         Panel *panel = systray.area.panel;
 313         panel->area.resize = 1;
 314         panel_refresh = 1;
 315
 316 }
 317
 318
 319 void net_message(XClientMessageEvent *e)
 320 {
 321         unsigned long opcode;
 322         Window id;
 323
 324         opcode = e->data.l[1];
 325         switch (opcode) {
 326                 case SYSTEM_TRAY_REQUEST_DOCK:
 327                         id = e->data.l[2];
 328                         if (id) add_icon(id);
 329                         break;
 330
 331                 case SYSTEM_TRAY_BEGIN_MESSAGE:
 332                 case SYSTEM_TRAY_CANCEL_MESSAGE:
 333                         // we don't show baloons messages.
 334                         break;
 335
 336                 default:
 337                         if (opcode == server.atom._NET_SYSTEM_TRAY_MESSAGE_DATA) {
 338                                 printf("message from dockapp: %s\n", e->data.b);
 339                         }
 340                         else
 341                                 printf("SYSTEM_TRAY : unknown message type\n");
 342                         break;
 343         }
 344 }
 345
 346
 347 void refresh_systray_icon()
 348 {
 349         TrayWindow *traywin;
 350         GSList *l;
 351         for (l = systray.list_icons; l ; l = l->next) {
 352                 traywin = (TrayWindow*)l->data;
 353                 XClearArea(server.dsp, traywin->id, 0, 0, traywin->width, traywin->height, True);
 354         }
 355 }
 356
 357