char **));
static void popup_get_selection P_ ((XEvent *, struct x_display_info *,
LWLIB_ID, int));
-
-/* Define HAVE_BOXES if menus can handle radio and toggle buttons. */
-
-#define HAVE_BOXES 1
#endif /* USE_X_TOOLKIT */
#ifdef USE_GTK
#include "gtkutil.h"
-#define HAVE_BOXES 1
extern void set_frame_menubar P_ ((FRAME_PTR, int, int));
static Lisp_Object xdialog_show P_ ((FRAME_PTR, int, Lisp_Object, Lisp_Object,
char **));
#endif
-/* This is how to deal with multibyte text if HAVE_MULTILINGUAL_MENU
- isn't defined. The use of HAVE_MULTILINGUAL_MENU could probably be
- confined to an extended version of this with sections of code below
- using it unconditionally. */
-#ifdef USE_GTK
-/* gtk just uses utf-8. */
-# define ENCODE_MENU_STRING(str) ENCODE_UTF_8 (str)
-#elif defined HAVE_X_I18N
-# define ENCODE_MENU_STRING(str) ENCODE_SYSTEM (str)
-#else
-# define ENCODE_MENU_STRING(str) string_make_unibyte (str)
-#endif
-
-static void push_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
- Lisp_Object, Lisp_Object, Lisp_Object,
- Lisp_Object, Lisp_Object));
static int update_frame_menubar P_ ((struct frame *));
static Lisp_Object xmenu_show P_ ((struct frame *, int, int, int, int,
Lisp_Object, char **));
-static void keymap_panes P_ ((Lisp_Object *, int, int));
-static void single_keymap_panes P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
- int, int));
-static void list_of_panes P_ ((Lisp_Object));
-static void list_of_items P_ ((Lisp_Object));
-
\f
-/* This holds a Lisp vector that holds the results of decoding
- the keymaps or alist-of-alists that specify a menu.
-
- It describes the panes and items within the panes.
-
- Each pane is described by 3 elements in the vector:
- t, the pane name, the pane's prefix key.
- Then follow the pane's items, with 5 elements per item:
- the item string, the enable flag, the item's value,
- the definition, and the equivalent keyboard key's description string.
-
- In some cases, multiple levels of menus may be described.
- A single vector slot containing nil indicates the start of a submenu.
- A single vector slot containing lambda indicates the end of a submenu.
- The submenu follows a menu item which is the way to reach the submenu.
-
- A single vector slot containing quote indicates that the
- following items should appear on the right of a dialog box.
-
- Using a Lisp vector to hold this information while we decode it
- takes care of protecting all the data from GC. */
-
-#define MENU_ITEMS_PANE_NAME 1
-#define MENU_ITEMS_PANE_PREFIX 2
-#define MENU_ITEMS_PANE_LENGTH 3
-
-enum menu_item_idx
-{
- MENU_ITEMS_ITEM_NAME = 0,
- MENU_ITEMS_ITEM_ENABLE,
- MENU_ITEMS_ITEM_VALUE,
- MENU_ITEMS_ITEM_EQUIV_KEY,
- MENU_ITEMS_ITEM_DEFINITION,
- MENU_ITEMS_ITEM_TYPE,
- MENU_ITEMS_ITEM_SELECTED,
- MENU_ITEMS_ITEM_HELP,
- MENU_ITEMS_ITEM_LENGTH
-};
-
-static Lisp_Object menu_items;
-
-/* If non-nil, means that the global vars defined here are already in use.
- Used to detect cases where we try to re-enter this non-reentrant code. */
-static Lisp_Object menu_items_inuse;
-
-/* Number of slots currently allocated in menu_items. */
-static int menu_items_allocated;
-
-/* This is the index in menu_items of the first empty slot. */
-static int menu_items_used;
-
-/* The number of panes currently recorded in menu_items,
- excluding those within submenus. */
-static int menu_items_n_panes;
-
-/* Current depth within submenus. */
-static int menu_items_submenu_depth;
-
/* Flag which when set indicates a dialog or menu has been posted by
Xt on behalf of one of the widget sets. */
static int popup_activated_flag;
static int next_menubar_widget_id;
+#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
+extern widget_value *xmalloc_widget_value P_ ((void));
+extern widget_value *digest_single_submenu P_ ((int, int, int));
+#endif
+
/* This is set nonzero after the user activates the menu bar, and set
to zero again after the menu bars are redisplayed by prepare_menu_bar.
While it is nonzero, all calls to set_frame_menubar go deep.
#endif
\f
-/* Initialize the menu_items structure if we haven't already done so.
- Also mark it as currently empty. */
-
-static void
-init_menu_items ()
-{
- if (!NILP (menu_items_inuse))
- error ("Trying to use a menu from within a menu-entry");
-
- if (NILP (menu_items))
- {
- menu_items_allocated = 60;
- menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil);
- }
-
- menu_items_inuse = Qt;
- menu_items_used = 0;
- menu_items_n_panes = 0;
- menu_items_submenu_depth = 0;
-}
-
-/* Call at the end of generating the data in menu_items. */
-
-static void
-finish_menu_items ()
-{
-}
-
-static Lisp_Object
-unuse_menu_items (dummy)
- Lisp_Object dummy;
-{
- return menu_items_inuse = Qnil;
-}
-
-/* Call when finished using the data for the current menu
- in menu_items. */
-
-static void
-discard_menu_items ()
-{
- /* Free the structure if it is especially large.
- Otherwise, hold on to it, to save time. */
- if (menu_items_allocated > 200)
- {
- menu_items = Qnil;
- menu_items_allocated = 0;
- }
- xassert (NILP (menu_items_inuse));
-}
-
-/* This undoes save_menu_items, and it is called by the specpdl unwind
- mechanism. */
-
-static Lisp_Object
-restore_menu_items (saved)
- Lisp_Object saved;
-{
- menu_items = XCAR (saved);
- menu_items_inuse = (! NILP (menu_items) ? Qt : Qnil);
- menu_items_allocated = (VECTORP (menu_items) ? ASIZE (menu_items) : 0);
- saved = XCDR (saved);
- menu_items_used = XINT (XCAR (saved));
- saved = XCDR (saved);
- menu_items_n_panes = XINT (XCAR (saved));
- saved = XCDR (saved);
- menu_items_submenu_depth = XINT (XCAR (saved));
- return Qnil;
-}
-
-/* Push the whole state of menu_items processing onto the specpdl.
- It will be restored when the specpdl is unwound. */
-
-static void
-save_menu_items ()
-{
- Lisp_Object saved = list4 (!NILP (menu_items_inuse) ? menu_items : Qnil,
- make_number (menu_items_used),
- make_number (menu_items_n_panes),
- make_number (menu_items_submenu_depth));
- record_unwind_protect (restore_menu_items, saved);
- menu_items_inuse = Qnil;
- menu_items = Qnil;
-}
-\f
-/* Make the menu_items vector twice as large. */
-
-static void
-grow_menu_items ()
-{
- menu_items_allocated *= 2;
- menu_items = larger_vector (menu_items, menu_items_allocated, Qnil);
-}
-
-/* Begin a submenu. */
-
-static void
-push_submenu_start ()
-{
- if (menu_items_used + 1 > menu_items_allocated)
- grow_menu_items ();
-
- XVECTOR (menu_items)->contents[menu_items_used++] = Qnil;
- menu_items_submenu_depth++;
-}
-
-/* End a submenu. */
-
-static void
-push_submenu_end ()
-{
- if (menu_items_used + 1 > menu_items_allocated)
- grow_menu_items ();
-
- XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda;
- menu_items_submenu_depth--;
-}
-
-/* Indicate boundary between left and right. */
-
-static void
-push_left_right_boundary ()
-{
- if (menu_items_used + 1 > menu_items_allocated)
- grow_menu_items ();
-
- XVECTOR (menu_items)->contents[menu_items_used++] = Qquote;
-}
-
-/* Start a new menu pane in menu_items.
- NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */
-
-static void
-push_menu_pane (name, prefix_vec)
- Lisp_Object name, prefix_vec;
-{
- if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated)
- grow_menu_items ();
-
- if (menu_items_submenu_depth == 0)
- menu_items_n_panes++;
- XVECTOR (menu_items)->contents[menu_items_used++] = Qt;
- XVECTOR (menu_items)->contents[menu_items_used++] = name;
- XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec;
-}
-
-/* Push one menu item into the current pane. NAME is the string to
- display. ENABLE if non-nil means this item can be selected. KEY
- is the key generated by choosing this item, or nil if this item
- doesn't really have a definition. DEF is the definition of this
- item. EQUIV is the textual description of the keyboard equivalent
- for this item (or nil if none). TYPE is the type of this menu
- item, one of nil, `toggle' or `radio'. */
-
-static void
-push_menu_item (name, enable, key, def, equiv, type, selected, help)
- Lisp_Object name, enable, key, def, equiv, type, selected, help;
-{
- if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated)
- grow_menu_items ();
-
- XVECTOR (menu_items)->contents[menu_items_used++] = name;
- XVECTOR (menu_items)->contents[menu_items_used++] = enable;
- XVECTOR (menu_items)->contents[menu_items_used++] = key;
- XVECTOR (menu_items)->contents[menu_items_used++] = equiv;
- XVECTOR (menu_items)->contents[menu_items_used++] = def;
- XVECTOR (menu_items)->contents[menu_items_used++] = type;
- XVECTOR (menu_items)->contents[menu_items_used++] = selected;
- XVECTOR (menu_items)->contents[menu_items_used++] = help;
-}
-\f
-/* Look through KEYMAPS, a vector of keymaps that is NMAPS long,
- and generate menu panes for them in menu_items.
- If NOTREAL is nonzero,
- don't bother really computing whether an item is enabled. */
-
-static void
-keymap_panes (keymaps, nmaps, notreal)
- Lisp_Object *keymaps;
- int nmaps;
- int notreal;
-{
- int 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, notreal, 10);
-
- finish_menu_items ();
-}
-
-/* Args passed between single_keymap_panes and single_menu_item. */
-struct skp
- {
- Lisp_Object pending_maps;
- int maxdepth, notreal;
- int notbuttons;
- };
-
-static void single_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
- void *));
-
-/* This is a recursive subroutine of keymap_panes.
- It handles one keymap, KEYMAP.
- The other arguments are passed along
- or point to local variables of the previous function.
- If NOTREAL is nonzero, only check for equivalent key bindings, don't
- evaluate expressions in menu items and don't make any menu.
-
- If we encounter submenus deeper than MAXDEPTH levels, ignore them. */
-
-static void
-single_keymap_panes (keymap, pane_name, prefix, notreal, maxdepth)
- Lisp_Object keymap;
- Lisp_Object pane_name;
- Lisp_Object prefix;
- int notreal;
- int maxdepth;
-{
- struct skp skp;
- struct gcpro gcpro1;
-
- skp.pending_maps = Qnil;
- skp.maxdepth = maxdepth;
- skp.notreal = notreal;
- skp.notbuttons = 0;
-
- if (maxdepth <= 0)
- return;
-
- push_menu_pane (pane_name, prefix);
-
-#ifndef HAVE_BOXES
- /* Remember index for first item in this pane so we can go back and
- add a prefix when (if) we see the first button. After that, notbuttons
- is set to 0, to mark that we have seen a button and all non button
- items need a prefix. */
- skp.notbuttons = menu_items_used;
-#endif
-
- GCPRO1 (skp.pending_maps);
- map_keymap_canonical (keymap, single_menu_item, Qnil, &skp);
- UNGCPRO;
-
- /* Process now any submenus which want to be panes at this level. */
- while (CONSP (skp.pending_maps))
- {
- Lisp_Object elt, eltcdr, string;
- elt = XCAR (skp.pending_maps);
- eltcdr = XCDR (elt);
- string = XCAR (eltcdr);
- /* We no longer discard the @ from the beginning of the string here.
- Instead, we do this in xmenu_show. */
- single_keymap_panes (Fcar (elt), string,
- XCDR (eltcdr), notreal, maxdepth - 1);
- skp.pending_maps = XCDR (skp.pending_maps);
- }
-}
-\f
-/* This is a subroutine of single_keymap_panes that handles one
- keymap entry.
- KEY is a key in a keymap and ITEM is its binding.
- SKP->PENDING_MAPS_PTR is a list of keymaps waiting to be made into
- separate panes.
- If SKP->NOTREAL is nonzero, only check for equivalent key bindings, don't
- evaluate expressions in menu items and don't make any menu.
- If we encounter submenus deeper than SKP->MAXDEPTH levels, ignore them.
- SKP->NOTBUTTONS is only used when simulating toggle boxes and radio
- buttons. It keeps track of if we have seen a button in this menu or
- not. */
-
-static void
-single_menu_item (key, item, dummy, skp_v)
- Lisp_Object key, item, dummy;
- void *skp_v;
-{
- Lisp_Object map, item_string, enabled;
- struct gcpro gcpro1, gcpro2;
- int res;
- struct skp *skp = skp_v;
-
- /* Parse the menu item and leave the result in item_properties. */
- GCPRO2 (key, item);
- res = parse_menu_item (item, skp->notreal, 0);
- UNGCPRO;
- if (!res)
- return; /* Not a menu item. */
-
- map = XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP];
-
- if (skp->notreal)
- {
- /* We don't want to make a menu, just traverse the keymaps to
- precompute equivalent key bindings. */
- if (!NILP (map))
- single_keymap_panes (map, Qnil, key, 1, skp->maxdepth - 1);
- return;
- }
-
- enabled = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE];
- item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME];
-
- if (!NILP (map) && SREF (item_string, 0) == '@')
- {
- if (!NILP (enabled))
- /* An enabled separate pane. Remember this to handle it later. */
- skp->pending_maps = Fcons (Fcons (map, Fcons (item_string, key)),
- skp->pending_maps);
- return;
- }
-
-#ifndef HAVE_BOXES
- /* Simulate radio buttons and toggle boxes by putting a prefix in
- front of them. */
- {
- Lisp_Object prefix = Qnil;
- Lisp_Object type = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE];
- if (!NILP (type))
- {
- Lisp_Object selected
- = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED];
-
- if (skp->notbuttons)
- /* The first button. Line up previous items in this menu. */
- {
- int index = skp->notbuttons; /* Index for first item this menu. */
- int submenu = 0;
- Lisp_Object tem;
- while (index < menu_items_used)
- {
- tem
- = XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME];
- if (NILP (tem))
- {
- index++;
- submenu++; /* Skip sub menu. */
- }
- else if (EQ (tem, Qlambda))
- {
- index++;
- submenu--; /* End sub menu. */
- }
- else if (EQ (tem, Qt))
- index += 3; /* Skip new pane marker. */
- else if (EQ (tem, Qquote))
- index++; /* Skip a left, right divider. */
- else
- {
- if (!submenu && SREF (tem, 0) != '\0'
- && SREF (tem, 0) != '-')
- XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME]
- = concat2 (build_string (" "), tem);
- index += MENU_ITEMS_ITEM_LENGTH;
- }
- }
- skp->notbuttons = 0;
- }
-
- /* Calculate prefix, if any, for this item. */
- if (EQ (type, QCtoggle))
- prefix = build_string (NILP (selected) ? "[ ] " : "[X] ");
- else if (EQ (type, QCradio))
- prefix = build_string (NILP (selected) ? "( ) " : "(*) ");
- }
- /* Not a button. If we have earlier buttons, then we need a prefix. */
- else if (!skp->notbuttons && SREF (item_string, 0) != '\0'
- && SREF (item_string, 0) != '-')
- prefix = build_string (" ");
-
- if (!NILP (prefix))
- item_string = concat2 (prefix, item_string);
- }
-#endif /* not HAVE_BOXES */
-
-#if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
- if (!NILP (map))
- /* Indicate visually that this is a submenu. */
- item_string = concat2 (item_string, build_string (" >"));
-#endif
-
- push_menu_item (item_string, enabled, key,
- XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF],
- XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ],
- XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE],
- XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED],
- XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]);
-
-#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
- /* Display a submenu using the toolkit. */
- if (! (NILP (map) || NILP (enabled)))
- {
- push_submenu_start ();
- single_keymap_panes (map, Qnil, key, 0, skp->maxdepth - 1);
- push_submenu_end ();
- }
-#endif
-}
-\f
-/* 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. */
-
-static void
-list_of_panes (menu)
- 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 ();
-}
-
-/* Push the items in a single pane defined by the alist PANE. */
-
-static void
-list_of_items (pane)
- Lisp_Object pane;
-{
- Lisp_Object tail, item, item1;
-
- for (tail = pane; CONSP (tail); tail = XCDR (tail))
- {
- item = XCAR (tail);
- if (STRINGP (item))
- push_menu_item (ENCODE_MENU_STRING (item), Qnil, Qnil, Qt,
- Qnil, Qnil, Qnil, Qnil);
- else if (CONSP (item))
- {
- item1 = XCAR (item);
- CHECK_STRING (item1);
- push_menu_item (ENCODE_MENU_STRING (item1), Qt, XCDR (item),
- Qt, Qnil, Qnil, Qnil, Qnil);
- }
- else
- push_left_right_boundary ();
-
- }
-}
-\f
#ifdef HAVE_X_WINDOWS
/* Return the mouse position in *X and *Y. The coordinates are window
relative for the edit window in frame F.
}
#endif
-/* Find the menu selection and store it in the keyboard buffer.
- F is the frame the menu is on.
- MENU_BAR_ITEMS_USED is the length of VECTOR.
- VECTOR is an array of menu events for the whole menu. */
-
-static void
-find_and_call_menu_selection (f, menu_bar_items_used, vector, client_data)
- FRAME_PTR f;
- EMACS_INT menu_bar_items_used;
- Lisp_Object vector;
- void *client_data;
-{
- Lisp_Object prefix, entry;
- Lisp_Object *subprefix_stack;
- int submenu_depth = 0;
- int i;
-
- entry = Qnil;
- subprefix_stack = (Lisp_Object *) alloca (menu_bar_items_used * sizeof (Lisp_Object));
- prefix = Qnil;
- i = 0;
-
- while (i < menu_bar_items_used)
- {
- if (EQ (XVECTOR (vector)->contents[i], Qnil))
- {
- subprefix_stack[submenu_depth++] = prefix;
- prefix = entry;
- i++;
- }
- else if (EQ (XVECTOR (vector)->contents[i], Qlambda))
- {
- prefix = subprefix_stack[--submenu_depth];
- i++;
- }
- else if (EQ (XVECTOR (vector)->contents[i], Qt))
- {
- prefix = XVECTOR (vector)->contents[i + MENU_ITEMS_PANE_PREFIX];
- i += MENU_ITEMS_PANE_LENGTH;
- }
- else
- {
- entry = XVECTOR (vector)->contents[i + MENU_ITEMS_ITEM_VALUE];
- /* The EMACS_INT cast avoids a warning. There's no problem
- as long as pointers have enough bits to hold small integers. */
- if ((int) (EMACS_INT) client_data == i)
- {
- int j;
- struct input_event buf;
- Lisp_Object frame;
- EVENT_INIT (buf);
-
- XSETFRAME (frame, f);
- buf.kind = MENU_BAR_EVENT;
- buf.frame_or_window = frame;
- buf.arg = frame;
- kbd_buffer_store_event (&buf);
-
- for (j = 0; j < submenu_depth; j++)
- if (!NILP (subprefix_stack[j]))
- {
- buf.kind = MENU_BAR_EVENT;
- buf.frame_or_window = frame;
- buf.arg = subprefix_stack[j];
- kbd_buffer_store_event (&buf);
- }
-
- if (!NILP (prefix))
- {
- buf.kind = MENU_BAR_EVENT;
- buf.frame_or_window = frame;
- buf.arg = prefix;
- kbd_buffer_store_event (&buf);
- }
-
- buf.kind = MENU_BAR_EVENT;
- buf.frame_or_window = frame;
- buf.arg = entry;
- kbd_buffer_store_event (&buf);
-
- return;
- }
- i += MENU_ITEMS_ITEM_LENGTH;
- }
- }
-}
-
-
#ifdef USE_GTK
/* Gtk calls callbacks just because we tell it what item should be
selected in a radio group. If this variable is set to a non-zero
f->menu_bar_vector, client_data);
}
#endif /* not USE_GTK */
-
-/* Allocate a widget_value, blocking input. */
-
-widget_value *
-xmalloc_widget_value ()
-{
- widget_value *value;
-
- BLOCK_INPUT;
- value = malloc_widget_value ();
- UNBLOCK_INPUT;
-
- return value;
-}
-
-/* This recursively calls free_widget_value on the tree of widgets.
- It must free all data that was malloc'ed for these widget_values.
- In Emacs, many slots are pointers into the data of Lisp_Strings, and
- must be left alone. */
-
-void
-free_menubar_widget_value_tree (wv)
- widget_value *wv;
-{
- if (! wv) return;
-
- wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
-
- if (wv->contents && (wv->contents != (widget_value*)1))
- {
- free_menubar_widget_value_tree (wv->contents);
- wv->contents = (widget_value *) 0xDEADBEEF;
- }
- if (wv->next)
- {
- free_menubar_widget_value_tree (wv->next);
- wv->next = (widget_value *) 0xDEADBEEF;
- }
- BLOCK_INPUT;
- free_widget_value (wv);
- UNBLOCK_INPUT;
-}
-\f
-/* Set up data in menu_items for a menu bar item
- whose event type is ITEM_KEY (with string ITEM_NAME)
- and whose contents come from the list of keymaps MAPS. */
-
-static int
-parse_single_submenu (item_key, item_name, maps)
- Lisp_Object item_key, item_name, maps;
-{
- Lisp_Object length;
- int len;
- Lisp_Object *mapvec;
- int i;
- int top_level_items = 0;
-
- length = Flength (maps);
- len = XINT (length);
-
- /* Convert the list MAPS into a vector MAPVEC. */
- mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object));
- for (i = 0; i < len; i++)
- {
- mapvec[i] = Fcar (maps);
- maps = Fcdr (maps);
- }
-
- /* Loop over the given keymaps, making a pane for each map.
- But don't make a pane that is empty--ignore that map instead. */
- for (i = 0; i < len; i++)
- {
- if (!KEYMAPP (mapvec[i]))
- {
- /* Here we have a command at top level in the menu bar
- as opposed to a submenu. */
- top_level_items = 1;
- push_menu_pane (Qnil, Qnil);
- push_menu_item (item_name, Qt, item_key, mapvec[i],
- Qnil, Qnil, Qnil, Qnil);
- }
- else
- {
- Lisp_Object prompt;
- prompt = Fkeymap_prompt (mapvec[i]);
- single_keymap_panes (mapvec[i],
- !NILP (prompt) ? prompt : item_name,
- item_key, 0, 10);
- }
- }
-
- return top_level_items;
-}
-
-/* Create a tree of widget_value objects
- representing the panes and items
- in menu_items starting at index START, up to index END. */
-
-static widget_value *
-digest_single_submenu (start, end, top_level_items)
- int start, end, top_level_items;
-{
- widget_value *wv, *prev_wv, *save_wv, *first_wv;
- int i;
- int submenu_depth = 0;
- widget_value **submenu_stack;
- int panes_seen = 0;
-
- submenu_stack
- = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
- wv = xmalloc_widget_value ();
- wv->name = "menu";
- wv->value = 0;
- wv->enabled = 1;
- wv->button_type = BUTTON_TYPE_NONE;
- wv->help = Qnil;
- first_wv = wv;
- save_wv = 0;
- prev_wv = 0;
-
- /* Loop over all panes and items made by the preceding call
- to parse_single_submenu and construct a tree of widget_value objects.
- Ignore the panes and items used by previous calls to
- digest_single_submenu, even though those are also in menu_items. */
- i = start;
- while (i < end)
- {
- if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
- {
- submenu_stack[submenu_depth++] = save_wv;
- save_wv = prev_wv;
- prev_wv = 0;
- i++;
- }
- else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
- {
- prev_wv = save_wv;
- save_wv = submenu_stack[--submenu_depth];
- i++;
- }
- else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
- && submenu_depth != 0)
- i += MENU_ITEMS_PANE_LENGTH;
- /* Ignore a nil in the item list.
- It's meaningful only for dialog boxes. */
- else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
- i += 1;
- else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
- {
- /* Create a new pane. */
- Lisp_Object pane_name, prefix;
- char *pane_string;
-
- panes_seen++;
-
- pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
- prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
-
-#ifndef HAVE_MULTILINGUAL_MENU
- if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
- {
- pane_name = ENCODE_MENU_STRING (pane_name);
- ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
- }
-#endif
- pane_string = (NILP (pane_name)
- ? "" : (char *) SDATA (pane_name));
- /* If there is just one top-level pane, put all its items directly
- under the top-level menu. */
- if (menu_items_n_panes == 1)
- pane_string = "";
-
- /* If the pane has a meaningful name,
- make the pane a top-level menu item
- with its items as a submenu beneath it. */
- if (strcmp (pane_string, ""))
- {
- wv = xmalloc_widget_value ();
- if (save_wv)
- save_wv->next = wv;
- else
- first_wv->contents = wv;
- wv->lname = pane_name;
- /* Set value to 1 so update_submenu_strings can handle '@' */
- wv->value = (char *)1;
- wv->enabled = 1;
- wv->button_type = BUTTON_TYPE_NONE;
- wv->help = Qnil;
- save_wv = wv;
- }
- else
- save_wv = first_wv;
-
- prev_wv = 0;
- i += MENU_ITEMS_PANE_LENGTH;
- }
- else
- {
- /* Create a new item within current pane. */
- Lisp_Object item_name, enable, descrip, def, type, selected;
- Lisp_Object help;
-
- /* All items should be contained in panes. */
- if (panes_seen == 0)
- abort ();
-
- item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
- enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
- descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
- def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
- type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
- selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
- help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);
-
-#ifndef HAVE_MULTILINGUAL_MENU
- if (STRING_MULTIBYTE (item_name))
- {
- item_name = ENCODE_MENU_STRING (item_name);
- ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
- }
-
- if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
- {
- descrip = ENCODE_MENU_STRING (descrip);
- ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
- }
-#endif /* not HAVE_MULTILINGUAL_MENU */
-
- wv = xmalloc_widget_value ();
- if (prev_wv)
- prev_wv->next = wv;
- else
- save_wv->contents = wv;
-
- wv->lname = item_name;
- if (!NILP (descrip))
- wv->lkey = descrip;
- wv->value = 0;
- /* The EMACS_INT cast avoids a warning. There's no problem
- as long as pointers have enough bits to hold small integers. */
- wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0);
- wv->enabled = !NILP (enable);
-
- if (NILP (type))
- wv->button_type = BUTTON_TYPE_NONE;
- else if (EQ (type, QCradio))
- wv->button_type = BUTTON_TYPE_RADIO;
- else if (EQ (type, QCtoggle))
- wv->button_type = BUTTON_TYPE_TOGGLE;
- else
- abort ();
-
- wv->selected = !NILP (selected);
- if (! STRINGP (help))
- help = Qnil;
-
- wv->help = help;
-
- prev_wv = wv;
-
- i += MENU_ITEMS_ITEM_LENGTH;
- }
- }
-
- /* If we have just one "menu item"
- that was originally a button, return it by itself. */
- if (top_level_items && first_wv->contents && first_wv->contents->next == 0)
- {
- wv = first_wv->contents;
- free_widget_value (first_wv);
- return wv;
- }
-
- return first_wv;
-}
-
-/* Walk through the widget_value tree starting at FIRST_WV and update
- the char * pointers from the corresponding lisp values.
- We do this after building the whole tree, since GC may happen while the
- tree is constructed, and small strings are relocated. So we must wait
- until no GC can happen before storing pointers into lisp values. */
-static void
-update_submenu_strings (first_wv)
- widget_value *first_wv;
-{
- widget_value *wv;
-
- for (wv = first_wv; wv; wv = wv->next)
- {
- if (STRINGP (wv->lname))
- {
- wv->name = (char *) SDATA (wv->lname);
-
- /* Ignore the @ that means "separate pane".
- This is a kludge, but this isn't worth more time. */
- if (wv->value == (char *)1)
- {
- if (wv->name[0] == '@')
- wv->name++;
- wv->value = 0;
- }
- }
-
- if (STRINGP (wv->lkey))
- wv->key = (char *) SDATA (wv->lkey);
-
- if (wv->contents)
- update_submenu_strings (wv->contents);
- }
-}
-
\f
/* Recompute all the widgets of frame F, when the menu bar has been
changed. Value is non-zero if widgets were updated. */
f->menu_bar_vector = menu_items;
f->menu_bar_items_used = menu_items_used;
- /* This calls restore_menu_items to restore menu_items, etc.,
- as they were outside. */
+ /* This undoes save_menu_items. */
unbind_to (specpdl_count, Qnil);
/* Now GC cannot happen during the lifetime of the widget_value,
void
syms_of_xmenu ()
{
- staticpro (&menu_items);
- menu_items = Qnil;
- menu_items_inuse = Qnil;
-
Qdebug_on_next_call = intern ("debug-on-next-call");
staticpro (&Qdebug_on_next_call);
projects / emacs.git / commitdiff