static void
keymap_panes (Lisp_Object *keymaps, ptrdiff_t nmaps)
{
ptrdiff_t mapno;
init_menu_items ();
/* Loop over the given keymaps, making a pane for each map.
But don't make a pane that is empty--ignore that map instead.
P is the number of panes we have made so far. */
for (mapno = 0; mapno < nmaps; mapno++)
single_keymap_panes (keymaps[mapno],
Fkeymap_prompt (keymaps[mapno]), Qnil, 10);
finish_menu_items ();
}
/* Push all the panes and items of a menu described by the
alist-of-alists MENU.
This handles old-fashioned calls to x-popup-menu. */
void
list_of_panes (Lisp_Object menu)
{
Lisp_Object tail;
init_menu_items ();
for (tail = menu; CONSP (tail); tail = XCDR (tail))
{
Lisp_Object elt, pane_name, pane_data;
elt = XCAR (tail);
pane_name = Fcar (elt);
CHECK_STRING (pane_name);
push_menu_pane (encode_menu_string (pane_name), Qnil);
pane_data = Fcdr (elt);
CHECK_CONS (pane_data);
list_of_items (pane_data);
}
finish_menu_items ();
}
void
set_frame_menubar (struct frame *f, bool first_time, bool deep_p)
{
HMENU menubar_widget = f->output_data.w32->menubar_widget;
Lisp_Object items;
widget_value *wv, *first_wv, *prev_wv = 0;
int i, last_i;
int *submenu_start, *submenu_end;
int *submenu_top_level_items, *submenu_n_panes;
/* We must not change the menubar when actually in use. */
if (f->output_data.w32->menubar_active)
return;
XSETFRAME (Vmenu_updating_frame, f);
if (! menubar_widget)
deep_p = true;
if (deep_p)
{
/* Make a widget-value tree representing the entire menu trees. */
struct buffer *prev = current_buffer;
Lisp_Object buffer;
ptrdiff_t specpdl_count = SPECPDL_INDEX ();
int previous_menu_items_used = f->menu_bar_items_used;
Lisp_Object *previous_items
= (Lisp_Object *) alloca (previous_menu_items_used
* word_size);
/* If we are making a new widget, its contents are empty,
do always reinitialize them. */
if (! menubar_widget)
previous_menu_items_used = 0;
buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->contents;
specbind (Qinhibit_quit, Qt);
/* Don't let the debugger step into this code
because it is not reentrant. */
specbind (Qdebug_on_next_call, Qnil);
record_unwind_save_match_data ();
if (NILP (Voverriding_local_map_menu_flag))
{
specbind (Qoverriding_terminal_local_map, Qnil);
specbind (Qoverriding_local_map, Qnil);
}
set_buffer_internal_1 (XBUFFER (buffer));
/* Run the hooks. */
safe_run_hooks (Qactivate_menubar_hook);
safe_run_hooks (Qmenu_bar_update_hook);
fset_menu_bar_items (f, menu_bar_items (FRAME_MENU_BAR_ITEMS (f)));
items = FRAME_MENU_BAR_ITEMS (f);
/* Save the frame's previous menu bar contents data. */
if (previous_menu_items_used)
memcpy (previous_items, XVECTOR (f->menu_bar_vector)->contents,
previous_menu_items_used * word_size);
/* Fill in menu_items with the current menu bar contents.
This can evaluate Lisp code. */
save_menu_items ();
menu_items = f->menu_bar_vector;
menu_items_allocated = VECTORP (menu_items) ? ASIZE (menu_items) : 0;
submenu_start = (int *) alloca (ASIZE (items) * sizeof (int));
submenu_end = (int *) alloca (ASIZE (items) * sizeof (int));
submenu_n_panes = (int *) alloca (ASIZE (items) * sizeof (int));
submenu_top_level_items = (int *) alloca (ASIZE (items) * sizeof (int));
init_menu_items ();
for (i = 0; i < ASIZE (items); i += 4)
{
Lisp_Object key, string, maps;
last_i = i;
key = AREF (items, i);
string = AREF (items, i + 1);
maps = AREF (items, i + 2);
if (NILP (string))
break;
submenu_start[i] = menu_items_used;
menu_items_n_panes = 0;
submenu_top_level_items[i]
= parse_single_submenu (key, string, maps);
submenu_n_panes[i] = menu_items_n_panes;
submenu_end[i] = menu_items_used;
}
finish_menu_items ();
/* Convert menu_items into widget_value trees
to display the menu. This cannot evaluate Lisp code. */
wv = make_widget_value ("menubar", NULL, true, Qnil);
wv->button_type = BUTTON_TYPE_NONE;
first_wv = wv;
for (i = 0; i < last_i; i += 4)
{
menu_items_n_panes = submenu_n_panes[i];
wv = digest_single_submenu (submenu_start[i], submenu_end[i],
submenu_top_level_items[i]);
if (prev_wv)
prev_wv->next = wv;
else
first_wv->contents = wv;
/* Don't set wv->name here; GC during the loop might relocate it. */
wv->enabled = true;
wv->button_type = BUTTON_TYPE_NONE;
prev_wv = wv;
}
set_buffer_internal_1 (prev);
/* If there has been no change in the Lisp-level contents
of the menu bar, skip redisplaying it. Just exit. */
for (i = 0; i < previous_menu_items_used; i++)
if (menu_items_used == i
|| (!EQ (previous_items[i], AREF (menu_items, i))))
break;
if (i == menu_items_used && i == previous_menu_items_used && i != 0)
{
free_menubar_widget_value_tree (first_wv);
discard_menu_items ();
unbind_to (specpdl_count, Qnil);
return;
}
fset_menu_bar_vector (f, menu_items);
f->menu_bar_items_used = menu_items_used;
/* This undoes save_menu_items. */
unbind_to (specpdl_count, Qnil);
/* Now GC cannot happen during the lifetime of the widget_value,
so it's safe to store data from a Lisp_String, as long as
local copies are made when the actual menu is created.
Windows takes care of this for normal string items, but
not for owner-drawn items or additional item-info. */
wv = first_wv->contents;
for (i = 0; i < ASIZE (items); i += 4)
{
Lisp_Object string;
string = AREF (items, i + 1);
if (NILP (string))
break;
wv->name = SSDATA (string);
update_submenu_strings (wv->contents);
wv = wv->next;
}
}
else
{
/* Make a widget-value tree containing
just the top level menu bar strings. */
wv = make_widget_value ("menubar", NULL, true, Qnil);
wv->button_type = BUTTON_TYPE_NONE;
first_wv = wv;
items = FRAME_MENU_BAR_ITEMS (f);
for (i = 0; i < ASIZE (items); i += 4)
{
Lisp_Object string;
string = AREF (items, i + 1);
if (NILP (string))
break;
wv = make_widget_value (SSDATA (string), NULL, true, Qnil);
wv->button_type = BUTTON_TYPE_NONE;
/* This prevents lwlib from assuming this
menu item is really supposed to be empty. */
/* The EMACS_INT cast avoids a warning.
This value just has to be different from small integers. */
wv->call_data = (void *) (EMACS_INT) (-1);
if (prev_wv)
prev_wv->next = wv;
else
first_wv->contents = wv;
prev_wv = wv;
}
/* Forget what we thought we knew about what is in the
detailed contents of the menu bar menus.
Changing the top level always destroys the contents. */
f->menu_bar_items_used = 0;
}
/* Create or update the menu bar widget. */
block_input ();
if (menubar_widget)
{
/* Empty current menubar, rather than creating a fresh one. */
while (DeleteMenu (menubar_widget, 0, MF_BYPOSITION))
;
}
else
{
menubar_widget = CreateMenu ();
}
fill_in_menu (menubar_widget, first_wv->contents);
free_menubar_widget_value_tree (first_wv);
{
HMENU old_widget = f->output_data.w32->menubar_widget;
f->output_data.w32->menubar_widget = menubar_widget;
SetMenu (FRAME_W32_WINDOW (f), f->output_data.w32->menubar_widget);
/* Causes flicker when menu bar is updated
DrawMenuBar (FRAME_W32_WINDOW (f)); */
/* Force the window size to be recomputed so that the frame's text
area remains the same, if menubar has just been created. */
if (old_widget == NULL)
{
windows_or_buffers_changed = 23;
adjust_frame_size (f, -1, -1, 2, false, Qmenu_bar_lines);
}
}
unblock_input ();
}