/* 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;
}
}
}
int task_flash(int argc, char *argv[]) {
int (*function)(int argc, char *argv[]);
if (argc < 3) {
int i;
TASK_FLASH_USAGE:
warning("usage: %s %s <task> [<task parameters>]\n", argv[0], argv[1]);
warning("supported tasks are:\n", argv[0]);
for (i = 0; tasks_flash[i].name != NULL; ++i)
warning("\t%s\n", tasks_flash[i].name);
return EXIT_FAILURE;
}
function = task_lookup(tasks_flash, 2, argc, argv);
if (function) {
int result;
radio = NULL;
result = function(argc, argv);
if (radio)
task_radio_done(radio);
return result;
}
goto TASK_FLASH_USAGE;
return EXIT_SUCCESS;
}
/* 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);
}
}
/* 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);
}
}
}
}
}
/*
* Allocate new task
*/
int
task_alloc(task_t task, struct task **pt)
{
struct task *t;
/* Check if specified task already exists. */
if (task_lookup(task) != NULL)
return EINVAL;
if (!(t = malloc(sizeof(struct task))))
return ENOMEM;
memset(t, 0, sizeof(struct task));
t->task = task;
strcpy(t->cwd, "/");
mutex_init(&t->lock);
TASK_LOCK();
list_insert(&task_table[TASKHASH(task)], &t->link);
TASK_UNLOCK();
*pt = t;
return 0;
}
