Mercurial > hg > xemacs-beta
diff src/event-Xt.c @ 450:98528da0b7fc r21-2-40
Import from CVS: tag r21-2-40
author | cvs |
---|---|
date | Mon, 13 Aug 2007 11:39:20 +0200 |
parents | 3078fd1074e8 |
children | 3d3049ae1304 |
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--- a/src/event-Xt.c Mon Aug 13 11:38:26 2007 +0200 +++ b/src/event-Xt.c Mon Aug 13 11:39:20 2007 +0200 @@ -92,6 +92,7 @@ static int process_events_occurred; static int tty_events_occurred; +static Widget widget_with_focus; /* Mask of bits indicating the descriptors that we wait for input on */ extern SELECT_TYPE input_wait_mask, process_only_mask, tty_only_mask; @@ -1536,11 +1537,12 @@ handle_focus_event_1 (struct frame *f, int in_p) { #if XtSpecificationRelease > 5 - Widget focus_widget = XtGetKeyboardFocusWidget (FRAME_X_TEXT_WIDGET (f)); + widget_with_focus = XtGetKeyboardFocusWidget (FRAME_X_TEXT_WIDGET (f)); #endif #ifdef HAVE_XIM XIM_focus_event (f, in_p); #endif /* HAVE_XIM */ + /* On focus change, clear all memory of sticky modifiers to avoid non-intuitive behavior. */ clear_sticky_modifiers (XDEVICE (FRAME_DEVICE (f))); @@ -1564,13 +1566,19 @@ click in the frame. Why is this? */ if (in_p #if XtSpecificationRelease > 5 - && FRAME_X_TEXT_WIDGET (f) != focus_widget + && FRAME_X_TEXT_WIDGET (f) != widget_with_focus #endif ) { lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), FRAME_X_TEXT_WIDGET (f)); } + + /* We have the focus now. See comment in + emacs_Xt_handle_widget_losing_focus (). */ + if (in_p) + widget_with_focus = NULL; + /* do the generic event-stream stuff. */ { Lisp_Object frm; @@ -1587,6 +1595,23 @@ } } +/* The idea here is that when a widget glyph gets unmapped we don't + want the focus to stay with it if it has focus - because it may + well just get deleted next andthen we have lost the focus until the + user does something. So handle_focus_event_1 records the widget + with keyboard focus when FocusOut is processed, and then, when a + widget gets unmapped, it calls this function to restore focus if + appropriate. */ +void emacs_Xt_handle_widget_losing_focus (struct frame* f, Widget losing_widget); +void +emacs_Xt_handle_widget_losing_focus (struct frame* f, Widget losing_widget) +{ + if (losing_widget == widget_with_focus) + { + handle_focus_event_1 (f, 1); + } +} + /* This is called from the external-widget code */ void emacs_Xt_handle_focus_event (XEvent *event);