static void
pager_propertynotify(pager_priv *p, XEvent *ev)
{
Atom at = ev->xproperty.atom;
Window win = ev->xproperty.window;
task *t;
ENTER;
if ((win == GDK_ROOT_WINDOW()) || !(t = g_hash_table_lookup(p->htable, &win)))
RET();
DBG("window=0x%lx\n", t->win);
if (at == a_NET_WM_STATE) {
DBG("event=NET_WM_STATE\n");
get_net_wm_state(t->win, &t->nws);
} else if (at == a_NET_WM_DESKTOP) {
DBG("event=NET_WM_DESKTOP\n");
desk_set_dirty_by_win(p, t); // to clean up desks where this task was
t->desktop = get_net_wm_desktop(t->win);
} else {
RET();
}
desk_set_dirty_by_win(p, t);
RET();
}
static void
do_net_active_window(FbEv *ev, pager_priv *p)
{
Window *fwin;
task *t;
ENTER;
fwin = get_xaproperty(GDK_ROOT_WINDOW(), a_NET_ACTIVE_WINDOW, XA_WINDOW, 0);
DBG("win=%lx\n", fwin ? *fwin : 0);
if (fwin) {
t = g_hash_table_lookup(p->htable, fwin);
if (t != p->focusedtask) {
if (p->focusedtask)
desk_set_dirty_by_win(p, p->focusedtask);
p->focusedtask = t;
if (t)
desk_set_dirty_by_win(p, t);
}
XFree(fwin);
} else {
if (p->focusedtask) {
desk_set_dirty_by_win(p, p->focusedtask);
p->focusedtask = NULL;
}
}
RET();
}
/* Handler for "active-window" event from root window listener. */
static void pager_net_active_window(FbEv * ev, PagerPlugin * pg)
{
Window * focused_window = get_xaproperty(GDK_ROOT_WINDOW(), a_NET_ACTIVE_WINDOW, XA_WINDOW, 0);
if (focused_window != NULL)
{
PagerTask * tk = task_lookup(pg, *focused_window);
if (tk != pg->focused_task)
{
/* Focused task changed. Redraw both old and new. */
if (pg->focused_task != NULL)
desk_set_dirty_by_win(pg, pg->focused_task);
pg->focused_task = tk;
if (tk != NULL)
desk_set_dirty_by_win(pg, tk);
}
XFree(focused_window);
}
else
{
/* Focused task disappeared. Redraw old. */
if (pg->focused_task != NULL)
{
desk_set_dirty_by_win(pg, pg->focused_task);
pg->focused_task = NULL;
}
}
}
/* Handle PropertyNotify event.
* http://tronche.com/gui/x/icccm/
* http://standards.freedesktop.org/wm-spec/wm-spec-1.4.html */
static void pager_property_notify_event(PagerPlugin * pg, XEvent * ev)
{
/* State may be PropertyNewValue, PropertyDeleted. */
if (((XPropertyEvent*) ev)->state == PropertyNewValue)
{
Atom at = ev->xproperty.atom;
Window win = ev->xproperty.window;
if (win != GDK_ROOT_WINDOW())
{
/* Look up task structure by X window handle. */
PagerTask * tk = task_lookup(pg, win);
if (tk != NULL)
{
/* Install an error handler that ignores BadWindow.
* We frequently get a PropertyNotify event on deleted windows. */
XErrorHandler previous_error_handler = XSetErrorHandler(panel_handle_x_error_swallow_BadWindow_BadDrawable);
/* Dispatch on atom. */
if (at == a_WM_STATE)
{
/* Window changed state. */
tk->ws = get_wm_state(tk->win);
desk_set_dirty_by_win(pg, tk);
}
else if (at == a_NET_WM_STATE)
{
/* Window changed EWMH state. */
get_net_wm_state(tk->win, &tk->nws);
desk_set_dirty_by_win(pg, tk);
}
else if (at == a_NET_WM_DESKTOP)
{
/* Window changed desktop.
* Mark both old and new desktops for redraw. */
desk_set_dirty_by_win(pg, tk);
tk->desktop = get_net_wm_desktop(tk->win);
desk_set_dirty_by_win(pg, tk);
XSetErrorHandler(previous_error_handler);
}
}
}
}
}
/* Handle ConfigureNotify event. */
static void pager_configure_notify_event(PagerPlugin * pg, XEvent * ev)
{
Window win = ev->xconfigure.window;
PagerTask * tk = task_lookup(pg, win);
if (tk != NULL)
{
task_get_geometry(tk);
desk_set_dirty_by_win(pg, tk);
}
}
static void
do_net_client_list_stacking(FbEv *ev, pager *p)
{
int i;
task *t;
ENTER;
if (p->wins)
XFree(p->wins);
p->wins = get_xaproperty (GDK_ROOT_WINDOW(), a_NET_CLIENT_LIST_STACKING,
XA_WINDOW, &p->winnum);
if (!p->wins || !p->winnum)
RET();
/* refresh existing tasks and add new */
for (i = 0; i < p->winnum; i++) {
if ((t = g_hash_table_lookup(p->htable, &p->wins[i]))) {
t->refcount++;
if (t->stacking != i) {
t->stacking = i;
desk_set_dirty_by_win(p, t);
}
} else {
t = g_new0(task, 1);
t->refcount++;
t->win = p->wins[i];
t->ws = get_wm_state (t->win);
t->desktop = get_net_wm_desktop(t->win);
get_net_wm_state(t->win, &t->nws);
get_net_wm_window_type(t->win, &t->nwwt);
task_get_sizepos(t);
if (!FBPANEL_WIN(t->win))
XSelectInput (GDK_DISPLAY(), t->win, PropertyChangeMask | StructureNotifyMask);
g_hash_table_insert(p->htable, &t->win, t);
DBG("add %x\n", t->win);
desk_set_dirty_by_win(p, t);
}
}
/* pass throu hash table and delete stale windows */
g_hash_table_foreach_remove(p->htable, (GHRFunc) task_remove_stale, (gpointer)p);
RET();
}
/* tell to remove element with zero refcount */
static gboolean
task_remove_stale(Window *win, task *t, pager_priv *p)
{
if (t->refcount-- == 0) {
desk_set_dirty_by_win(p, t);
if (p->focusedtask == t)
p->focusedtask = NULL;
DBG("del %lx\n", t->win);
g_free(t);
return TRUE;
}
return FALSE;
}
/*
static void
pager_unmapnotify(pager_priv *p, XEvent *ev)
{
Window win = ev->xunmap.window;
task *t;
if (!(t = g_hash_table_lookup(p->htable, &win)))
RET();
DBG("pager_unmapnotify: win=0x%x\n", win);
RET();
t->ws = WithdrawnState;
desk_set_dirty_by_win(p, t);
RET();
}
*/
static void
pager_configurenotify(pager_priv *p, XEvent *ev)
{
Window win = ev->xconfigure.window;
task *t;
ENTER;
if (!(t = g_hash_table_lookup(p->htable, &win)))
RET();
DBG("win=0x%lx\n", win);
task_get_sizepos(t);
desk_set_dirty_by_win(p, t);
RET();
}
