diff options
Diffstat (limited to 'src/gtkutil.c')
| -rw-r--r-- | src/gtkutil.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/gtkutil.c b/src/gtkutil.c index e95601c7fdd..543b868448d 100644 --- a/src/gtkutil.c +++ b/src/gtkutil.c @@ -3371,6 +3371,38 @@ xg_set_toolkit_scroll_bar_thumb (bar, portion, position, whole) } } +/* Return non-zero if EVENT is for a scroll bar in frame F. + When the same X window is used for several Gtk+ widgets, we cannot + say for sure based on the X window alone if an event is for the + frame. This function does additional checks. + + Return non-zero if the event is for a scroll bar, zero otherwise. */ + +int +xg_event_is_for_scrollbar (f, event) + FRAME_PTR f; + XEvent *event; +{ + int retval = 0; + + if (f && event->type == ButtonPress) + { + /* Check if press occurred outside the edit widget. */ + GdkDisplay *gdpy = gdk_x11_lookup_xdisplay (FRAME_X_DISPLAY (f)); + retval = gdk_display_get_window_at_pointer (gdpy, NULL, NULL) + != f->output_data.x->edit_widget->window; + } + else if (f && (event->type != ButtonRelease || event->type != MotionNotify)) + { + /* If we are releasing or moving the scroll bar, it has the grab. */ + retval = gtk_grab_get_current () != 0 + && gtk_grab_get_current () != f->output_data.x->edit_widget; + } + + return retval; +} + + /*********************************************************************** Tool bar functions |