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Prepare for exposing window-tree functions in Elisp.

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* window.c (decode_window, decode_any_window): Move up in code.
(Fwindowp, Fwindow_live_p): Rewrite doc-strings.
(inhibit_frame_unsplittable): Remove unused variable.
This commit is contained in:
Martin Rudalics 2011-06-06 10:13:36 +02:00
parent 4d09bcf621
commit f230ecc962
2 changed files with 30 additions and 39 deletions
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6
src/ChangeLog
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@ -1,3 +1,9 @@
2011-06-06 Martin Rudalics <rudalics@gmx.at>
* window.c (decode_window, decode_any_window): Move up in code.
(Fwindowp, Fwindow_live_p): Rewrite doc-strings.
(inhibit_frame_unsplittable): Remove unused variable.
2011-06-06 Paul Eggert <eggert@cs.ucla.edu>
* alloc.c (memory_full) [SYSTEM_MALLOC]: Port to MacOS (Bug#8800).

63
src/window.c
View file

@ -94,71 +94,76 @@ static Lisp_Object select_window (Lisp_Object, Lisp_Object, int);
This value is always the same as
FRAME_SELECTED_WINDOW (selected_frame). */
Lisp_Object selected_window;
/* A list of all windows for use by next_window and Fwindow_list.
Functions creating or deleting windows should invalidate this cache
by setting it to nil. */
Lisp_Object Vwindow_list;
/* The mini-buffer window of the selected frame.
Note that you cannot test for mini-bufferness of an arbitrary window
by comparing against this; but you can test for mini-bufferness of
the selected window. */
Lisp_Object minibuf_window;
/* Non-nil means it is the window whose mode line should be
shown as the selected window when the minibuffer is selected. */
Lisp_Object minibuf_selected_window;
/* Hook run at end of temp_output_buffer_show. */
static Lisp_Object Qtemp_buffer_show_hook;
/* Incremented for each window created. */
static int sequence_number;
/* Nonzero after init_window_once has finished. */
static int window_initialized;
/* Hook to run when window config changes. */
static Lisp_Object Qwindow_configuration_change_hook;
/* Incremented by 1 whenever a window is deleted. */
/* Incremented by 1 whenever a window is deleted. */
static int window_deletion_count;
/* Used by the function window_scroll_pixel_based */
static int window_scroll_pixel_based_preserve_x;
static int window_scroll_pixel_based_preserve_y;
/* Same for window_scroll_line_based. */
static int window_scroll_preserve_hpos;
static int window_scroll_preserve_vpos;
#if 0 /* This isn't used anywhere. */
/* Nonzero means we can split a frame even if it is "unsplittable". */
static int inhibit_frame_unsplittable;
#endif
static struct window *
decode_window (register Lisp_Object window)
{
if (NILP (window))
return XWINDOW (selected_window);
CHECK_LIVE_WINDOW (window);
return XWINDOW (window);
}
static struct window *
decode_any_window (register Lisp_Object window)
{
if (NILP (window))
return XWINDOW (selected_window);
CHECK_WINDOW (window);
return XWINDOW (window);
}
DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0,
doc: /* Return t if OBJECT is a window. */)
doc: /* Return t if OBJECT is a window and nil otherwise. */)
(Lisp_Object object)
{
return WINDOWP (object) ? Qt : Qnil;
}
DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0,
doc: /* Return t if OBJECT is a window which is currently visible. */)
doc: /* Return t if OBJECT is a live window and nil otherwise.
A live window is a window that displays a buffer. */)
(Lisp_Object object)
{
return WINDOW_LIVE_P (object) ? Qt : Qnil;
@ -424,26 +429,6 @@ Return nil if window display is not up-to-date. In that case, use
static struct window *
decode_window (register Lisp_Object window)
{
if (NILP (window))
return XWINDOW (selected_window);
CHECK_LIVE_WINDOW (window);
return XWINDOW (window);
}
static struct window *
decode_any_window (register Lisp_Object window)
{
if (NILP (window))
return XWINDOW (selected_window);
CHECK_WINDOW (window);
return XWINDOW (window);
}
DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0,
doc: /* Return the buffer that WINDOW is displaying.
WINDOW defaults to the selected window. */)