static bool
enable_gpm_mouse(SCREEN *sp, bool enable)
{
bool result;
T((T_CALLED("enable_gpm_mouse(%d)"), enable));
if (enable && !sp->_mouse_active) {
#ifdef HAVE_LIBDL
if (sp->_mouse_gpm_found && !sp->_mouse_gpm_loaded) {
load_gpm_library(sp);
}
#endif
if (sp->_mouse_gpm_loaded) {
/* GPM: initialize connection to gpm server */
sp->_mouse_gpm_connect.eventMask = GPM_DOWN | GPM_UP;
sp->_mouse_gpm_connect.defaultMask =
(unsigned short) (~(sp->_mouse_gpm_connect.eventMask | GPM_HARD));
sp->_mouse_gpm_connect.minMod = 0;
sp->_mouse_gpm_connect.maxMod =
(unsigned short) (~((1 << KG_SHIFT) |
(1 << KG_SHIFTL) |
(1 << KG_SHIFTR)));
/*
* Note: GPM hardcodes \E[?1001s and \E[?1000h during its open.
* The former is recognized by wscons (SunOS), and the latter by
* xterm. Those will not show up in ncurses' traces.
*/
result = (my_Gpm_Open(&sp->_mouse_gpm_connect, 0) >= 0);
} else {
result = FALSE;
}
sp->_mouse_active = result;
T(("GPM open %s", result ? "succeeded" : "failed"));
} else {
if (!enable && sp->_mouse_active) {
/* GPM: close connection to gpm server */
my_Gpm_Close();
sp->_mouse_active = FALSE;
T(("GPM closed"));
}
result = enable;
}
#ifdef HAVE_LIBDL
if (!result) {
unload_gpm_library(sp);
}
#endif
returnBool(result);
}
static void
load_gpm_library(SCREEN *sp)
{
sp->_mouse_gpm_found = FALSE;
if ((sp->_dlopen_gpm = dlopen(LIBGPM_SONAME, my_RTLD)) != 0) {
if (GET_DLSYM(gpm_fd) == 0 ||
GET_DLSYM(Gpm_Open) == 0 ||
GET_DLSYM(Gpm_Close) == 0 ||
GET_DLSYM(Gpm_GetEvent) == 0) {
T(("GPM initialization failed: %s", dlerror()));
unload_gpm_library(sp);
} else {
sp->_mouse_gpm_found = TRUE;
sp->_mouse_gpm_loaded = TRUE;
}
}
}
