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

   1 #include "net.h"
   2 #include "docker.h"
   3 #include "icons.h"
   4 #include <assert.h>
   5
   6 Atom net_opcode_atom;
   7 Window net_sel_win;
   8
   9 static Atom net_sel_atom;
  10 static Atom net_manager_atom;
  11 static Atom net_message_data_atom;
  12
  13 /* defined in the systray spec */
  14 #define SYSTEM_TRAY_REQUEST_DOCK    0
  15 #define SYSTEM_TRAY_BEGIN_MESSAGE   1
  16 #define SYSTEM_TRAY_CANCEL_MESSAGE  2
  17
  18 static void net_create_selection_window()
  19 {
  20   net_sel_win = XCreateSimpleWindow(display, root, -1, -1, 1, 1, 0, 0, 0);
  21   assert(net_sel_win);
  22 }
  23
  24
  25 static void net_destroy_selection_window()
  26 {
  27   XDestroyWindow(display, net_sel_win);
  28   net_sel_win = None;
  29 }
  30
  31
  32 void net_init()
  33 {
  34   char *name;
  35   XEvent m;
  36
  37   name = g_strdup_printf("_NET_SYSTEM_TRAY_S%d", DefaultScreen(display));
  38   net_sel_atom = XInternAtom(display, name, False);
  39   assert(net_sel_atom);
  40   net_opcode_atom = XInternAtom(display, "_NET_SYSTEM_TRAY_OPCODE", False);
  41   assert(net_opcode_atom);
  42   net_manager_atom = XInternAtom(display, "MANAGER", False);
  43   assert(net_manager_atom);
  44   net_message_data_atom = XInternAtom(display, "_NET_SYSTEM_TRAY_MESSAGE_DATA",
  45                                       False);
  46    assert(net_message_data_atom);
  47
  48   net_create_selection_window();
  49
  50   XSetSelectionOwner(display, net_sel_atom, net_sel_win, CurrentTime);
  51   if (XGetSelectionOwner(display, net_sel_atom) != net_sel_win)
  52     return; /* we don't get the selection */
  53
  54   m.type = ClientMessage;
  55   m.xclient.message_type = net_manager_atom;
  56   m.xclient.format = 32;
  57   m.xclient.data.l[0] = CurrentTime;
  58   m.xclient.data.l[1] = net_sel_atom;
  59   m.xclient.data.l[2] = net_sel_win;
  60   m.xclient.data.l[3] = 0;
  61   m.xclient.data.l[4] = 0;
  62   XSendEvent(display, root, False, StructureNotifyMask, &m);
  63 }
  64
  65
  66 void net_destroy()
  67 {
  68   net_destroy_selection_window();
  69 }
  70
  71
  72 void net_message(XClientMessageEvent *e)
  73 {
  74   unsigned long opcode;
  75   Window id;
  76
  77   assert(e);
  78
  79   opcode = e->data.l[1];
  80
  81   switch (opcode)
  82   {
  83   case SYSTEM_TRAY_REQUEST_DOCK: /* dock a new icon */
  84     id = e->data.l[2];
  85     if (id && icon_add(id, NET))
  86       XSelectInput(display, id, StructureNotifyMask);
  87     break;
  88
  89   case SYSTEM_TRAY_BEGIN_MESSAGE:
  90     g_printerr("Message From Dockapp\n");
  91     id = e->window;
  92     break;
  93
  94   case SYSTEM_TRAY_CANCEL_MESSAGE:
  95     g_printerr("Message Cancelled\n");
  96     id = e->window;
  97     break;
  98
  99   default:
 100     if (opcode == net_message_data_atom) {
 101       g_printerr("Text For Message From Dockapp:\n%s\n", e->data.b);
 102       id = e->window;
 103       break;
 104     }
 105
 106     /* unknown message type. not in the spec. */
 107     g_printerr("Warning: Received unknown client message to System Tray "
 108                "selection window.\n");
 109     break;
 110   }
 111 }
 112
 113
 114 void net_icon_remove(TrayWindow *traywin)
 115 {
 116   assert(traywin);
 117
 118   XSelectInput(display, traywin->id, NoEventMask);
 119 }