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X11: Fixed message boxes not responding to click on titlebar close button.

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The window needs to catch ClientMessage events for one specific window, but
XNextEvent() catches everything, and XWindowEvent doesn't catch ClientMessage,
so we need predicate procedure and XIfEvent() here.

Fixes Bugzilla #2980.
This commit is contained in:
Ryan C. Gordon 2015-05-31 22:48:26 -04:00
parent cb60f2dfc2
commit 554b2b0e36
1 changed files with 10 additions and 1 deletions
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11
src/video/x11/SDL_x11messagebox.c
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@ -548,6 +548,13 @@ X11_MessageBoxDraw( SDL_MessageBoxDataX11 *data, GC ctx )
#endif
}
static Bool
X11_MessageBoxEventTest(Display *display, XEvent *event, XPointer arg)
{
const SDL_MessageBoxDataX11 *data = (const SDL_MessageBoxDataX11 *) arg;
return ((event->xany.display == data->display) && (event->xany.window == data->window)) ? True : False;
}
/* Loop and handle message box event messages until something kills it. */
static int
X11_MessageBoxLoop( SDL_MessageBoxDataX11 *data )
@ -580,7 +587,9 @@ X11_MessageBoxLoop( SDL_MessageBoxDataX11 *data )
XEvent e;
SDL_bool draw = SDL_TRUE;
X11_XWindowEvent( data->display, data->window, data->event_mask, &e );
/* can't use XWindowEvent() because it can't handle ClientMessage events. */
/* can't use XNextEvent() because we only want events for this window. */
X11_XIfEvent( data->display, &e, X11_MessageBoxEventTest, (XPointer) data );
/* If X11_XFilterEvent returns True, then some input method has filtered the
event, and the client should discard the event. */