static void __focus_grab_one_button(
FvwmWindow *fw, int button, int grab_buttons)
{
Bool do_grab;
do_grab = (grab_buttons & (1 << button));
if ((do_grab & (1 << button)) == (fw->grabbed_buttons & (1 << button)))
{
return;
}
if (do_grab)
{
XGrabButton(
dpy, button + 1, AnyModifier, FW_W_PARENT(fw), True,
ButtonPressMask, GrabModeSync, GrabModeAsync, None,
None);
/* Set window flags accordingly as we grab or ungrab. */
fw->grabbed_buttons |= (1 << button);
}
else
{
XUngrabButton(dpy, button + 1, AnyModifier, FW_W_PARENT(fw));
fw->grabbed_buttons &= ~(1 << button);
}
return;
}
/*
* Defer the execution of a function to the next button press if the context is
* C_ROOT
*
* Inputs:
* cursor - the cursor to display while waiting
*/
static Bool DeferExecution(
exec_context_changes_t *ret_ecc, exec_context_change_mask_t *ret_mask,
cursor_t cursor, int trigger_evtype, int do_allow_unmanaged)
{
int done;
int finished = 0;
int just_waiting_for_finish = 0;
Window dummy;
Window original_w;
static XEvent e;
Window w;
int wcontext;
FvwmWindow *fw;
int FinishEvent;
fw = ret_ecc->w.fw;
w = ret_ecc->w.w;
original_w = w;
wcontext = ret_ecc->w.wcontext;
FinishEvent = ((fw != NULL) ? ButtonRelease : ButtonPress);
if (wcontext == C_UNMANAGED && do_allow_unmanaged)
{
return False;
}
if (wcontext != C_ROOT && wcontext != C_NO_CONTEXT && fw != NULL &&
wcontext != C_EWMH_DESKTOP)
{
if (FinishEvent == ButtonPress ||
(FinishEvent == ButtonRelease &&
trigger_evtype != ButtonPress))
{
return False;
}
else if (FinishEvent == ButtonRelease)
{
/* We are only waiting until the user releases the
* button. Do not change the cursor. */
cursor = CRS_NONE;
just_waiting_for_finish = 1;
}
}
if (Scr.flags.are_functions_silent)
{
return True;
}
if (!GrabEm(cursor, GRAB_NORMAL))
{
XBell(dpy, 0);
return True;
}
MyXGrabKeyboard(dpy);
while (!finished)
{
done = 0;
/* block until there is an event */
FMaskEvent(
dpy, ButtonPressMask | ButtonReleaseMask |
ExposureMask | KeyPressMask | VisibilityChangeMask |
ButtonMotionMask | PointerMotionMask
/* | EnterWindowMask | LeaveWindowMask*/, &e);
if (e.type == KeyPress)
{
KeySym keysym = XLookupKeysym(&e.xkey, 0);
if (keysym == XK_Escape)
{
ret_ecc->x.etrigger = &e;
*ret_mask |= ECC_ETRIGGER;
UngrabEm(GRAB_NORMAL);
MyXUngrabKeyboard(dpy);
return True;
}
Keyboard_shortcuts(&e, NULL, NULL, NULL, FinishEvent);
}
if (e.type == FinishEvent)
{
finished = 1;
}
switch (e.type)
{
case KeyPress:
case ButtonPress:
if (e.type != FinishEvent)
{
original_w = e.xany.window;
}
done = 1;
break;
case ButtonRelease:
done = 1;
break;
default:
break;
}
if (!done)
{
dispatch_event(&e);
}
}
MyXUngrabKeyboard(dpy);
UngrabEm(GRAB_NORMAL);
if (just_waiting_for_finish)
{
return False;
}
w = e.xany.window;
ret_ecc->x.etrigger = &e;
*ret_mask |= ECC_ETRIGGER | ECC_W | ECC_WCONTEXT;
if ((w == Scr.Root || w == Scr.NoFocusWin) &&
e.xbutton.subwindow != None)
{
w = e.xbutton.subwindow;
e.xany.window = w;
}
if (w == Scr.Root || IS_EWMH_DESKTOP(w))
{
ret_ecc->w.w = w;
ret_ecc->w.wcontext = C_ROOT;
XBell(dpy, 0);
return True;
}
*ret_mask |= ECC_FW;
if (XFindContext(dpy, w, FvwmContext, (caddr_t *)&fw) == XCNOENT)
{
ret_ecc->w.fw = NULL;
ret_ecc->w.w = w;
ret_ecc->w.wcontext = C_ROOT;
XBell(dpy, 0);
return (True);
}
if (w == FW_W_PARENT(fw))
{
w = FW_W(fw);
}
if (original_w == FW_W_PARENT(fw))
{
original_w = FW_W(fw);
}
/* this ugly mess attempts to ensure that the release and press
* are in the same window. */
if (w != original_w && original_w != Scr.Root &&
original_w != None && original_w != Scr.NoFocusWin &&
!IS_EWMH_DESKTOP(original_w))
{
if (w != FW_W_FRAME(fw) || original_w != FW_W(fw))
{
ret_ecc->w.fw = fw;
ret_ecc->w.w = w;
ret_ecc->w.wcontext = C_ROOT;
XBell(dpy, 0);
return True;
}
}
if (IS_EWMH_DESKTOP(FW_W(fw)))
{
ret_ecc->w.fw = fw;
ret_ecc->w.w = w;
ret_ecc->w.wcontext = C_ROOT;
XBell(dpy, 0);
return True;
}
wcontext = GetContext(NULL, fw, &e, &dummy);
ret_ecc->w.fw = fw;
ret_ecc->w.w = w;
ret_ecc->w.wcontext = C_ROOT;
return False;
}
