/* Menu support for GNU Emacs on the Microsoft W32 API.
Copyright (C) 1986, 1988, 1993, 1994, 1996, 1998, 1999, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008
+ 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <signal.h>
#include <stdio.h>
#include <mbstring.h>
+#include <setjmp.h>
#include "lisp.h"
#include "keyboard.h"
#include "charset.h"
#include "character.h"
#include "coding.h"
+#include "menu.h"
/* This may include sys/types.h, and that somehow loses
if this is not done before the other system files. */
Lisp_Object Qdebug_on_next_call;
-extern Lisp_Object Vmenu_updating_frame;
-
extern Lisp_Object Qmenu_bar;
extern Lisp_Object QCtoggle, QCradio;
void set_frame_menubar P_ ((FRAME_PTR, int, int));
-static void push_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
- Lisp_Object, Lisp_Object, Lisp_Object,
- Lisp_Object, Lisp_Object));
#ifdef HAVE_DIALOGS
static Lisp_Object w32_dialog_show P_ ((FRAME_PTR, int, Lisp_Object, char**));
#else
static int is_simple_dialog P_ ((Lisp_Object));
static Lisp_Object simple_dialog_show P_ ((FRAME_PTR, Lisp_Object, Lisp_Object));
#endif
-static Lisp_Object w32_menu_show P_ ((FRAME_PTR, int, int, int, int,
- Lisp_Object, char **));
void w32_free_menu_strings P_((HWND));
\f
-static int next_menubar_widget_id;
-
-extern widget_value *xmalloc_widget_value P_ ((void));
/* 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.
return 0;
}
\f
-DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0,
- doc: /* Pop up a deck-of-cards menu and return user's selection.
-POSITION is a position specification. This is either a mouse button
-event or a list ((XOFFSET YOFFSET) WINDOW) where XOFFSET and YOFFSET
-are positions in pixels from the top left corner of WINDOW's frame
-\(WINDOW may be a frame object instead of a window). This controls the
-position of the center of the first line in the first pane of the
-menu, not the top left of the menu as a whole. If POSITION is t, it
-means to use the current mouse position.
-
-MENU is a specifier for a menu. For the simplest case, MENU is a keymap.
-The menu items come from key bindings that have a menu string as well as
-a definition; actually, the \"definition\" in such a key binding looks like
-\(STRING . REAL-DEFINITION). To give the menu a title, put a string into
-the keymap as a top-level element.
-
-If REAL-DEFINITION is nil, that puts a nonselectable string in the menu.
-Otherwise, REAL-DEFINITION should be a valid key binding definition.
-
-You can also use a list of keymaps as MENU. Then each keymap makes a
-separate pane. When MENU is a keymap or a list of keymaps, the return
-value is a list of events.
-
-Alternatively, you can specify a menu of multiple panes with a list of
-the form (TITLE PANE1 PANE2...), where each pane is a list of
-form (TITLE ITEM1 ITEM2...).
-Each ITEM is normally a cons cell (STRING . VALUE); but a string can
-appear as an item--that makes a nonselectable line in the menu.
-With this form of menu, the return value is VALUE from the chosen item.
-
-If POSITION is nil, don't display the menu at all, just precalculate the
-cached information about equivalent key sequences. */)
- (position, menu)
- Lisp_Object position, menu;
-{
- Lisp_Object keymap, tem;
- int xpos = 0, ypos = 0;
- Lisp_Object title;
- char *error_name;
- Lisp_Object selection;
- FRAME_PTR f = NULL;
- Lisp_Object x, y, window;
- int keymaps = 0;
- int for_click = 0;
- struct gcpro gcpro1;
-
-#ifdef HAVE_MENUS
- if (! NILP (position))
- {
- check_w32 ();
-
- /* Decode the first argument: find the window and the coordinates. */
- if (EQ (position, Qt)
- || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar)
- || EQ (XCAR (position), Qtool_bar))))
- {
- /* Use the mouse's current position. */
- FRAME_PTR new_f = SELECTED_FRAME ();
- Lisp_Object bar_window;
- enum scroll_bar_part part;
- unsigned long time;
-
- if (FRAME_TERMINAL (new_f)->mouse_position_hook)
- (*FRAME_TERMINAL (new_f)->mouse_position_hook) (&new_f, 1, &bar_window,
- &part, &x, &y, &time);
- if (new_f != 0)
- XSETFRAME (window, new_f);
- else
- {
- window = selected_window;
- XSETFASTINT (x, 0);
- XSETFASTINT (y, 0);
- }
- }
- else
- {
- tem = Fcar (position);
- if (CONSP (tem))
- {
- window = Fcar (Fcdr (position));
- x = Fcar (tem);
- y = Fcar (Fcdr (tem));
- }
- else
- {
- for_click = 1;
- tem = Fcar (Fcdr (position)); /* EVENT_START (position) */
- window = Fcar (tem); /* POSN_WINDOW (tem) */
- tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */
- x = Fcar (tem);
- y = Fcdr (tem);
- }
- }
-
- CHECK_NUMBER (x);
- CHECK_NUMBER (y);
-
- /* Decode where to put the menu. */
-
- if (FRAMEP (window))
- {
- f = XFRAME (window);
- xpos = 0;
- ypos = 0;
- }
- else if (WINDOWP (window))
- {
- CHECK_LIVE_WINDOW (window);
- f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
-
- xpos = WINDOW_LEFT_EDGE_X (XWINDOW (window));
- ypos = WINDOW_TOP_EDGE_Y (XWINDOW (window));
- }
- else
- /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
- but I don't want to make one now. */
- CHECK_WINDOW (window);
-
- xpos += XINT (x);
- ypos += XINT (y);
-
- XSETFRAME (Vmenu_updating_frame, f);
- }
- else
- Vmenu_updating_frame = Qnil;
-#endif /* HAVE_MENUS */
-
- title = Qnil;
- GCPRO1 (title);
-
- /* Decode the menu items from what was specified. */
-
- keymap = get_keymap (menu, 0, 0);
- if (CONSP (keymap))
- {
- /* We were given a keymap. Extract menu info from the keymap. */
- Lisp_Object prompt;
-
- /* Extract the detailed info to make one pane. */
- keymap_panes (&menu, 1, NILP (position));
-
- /* Search for a string appearing directly as an element of the keymap.
- That string is the title of the menu. */
- prompt = Fkeymap_prompt (keymap);
- if (NILP (title) && !NILP (prompt))
- title = prompt;
-
- /* Make that be the pane title of the first pane. */
- if (!NILP (prompt) && menu_items_n_panes >= 0)
- ASET (menu_items, MENU_ITEMS_PANE_NAME, prompt);
-
- keymaps = 1;
- }
- else if (CONSP (menu) && KEYMAPP (XCAR (menu)))
- {
- /* We were given a list of keymaps. */
- int nmaps = XFASTINT (Flength (menu));
- Lisp_Object *maps
- = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object));
- int i;
-
- title = Qnil;
-
- /* The first keymap that has a prompt string
- supplies the menu title. */
- for (tem = menu, i = 0; CONSP (tem); tem = Fcdr (tem))
- {
- Lisp_Object prompt;
-
- maps[i++] = keymap = get_keymap (Fcar (tem), 1, 0);
-
- prompt = Fkeymap_prompt (keymap);
- if (NILP (title) && !NILP (prompt))
- title = prompt;
- }
-
- /* Extract the detailed info to make one pane. */
- keymap_panes (maps, nmaps, NILP (position));
-
- /* Make the title be the pane title of the first pane. */
- if (!NILP (title) && menu_items_n_panes >= 0)
- ASET (menu_items, MENU_ITEMS_PANE_NAME, title);
-
- keymaps = 1;
- }
- else
- {
- /* We were given an old-fashioned menu. */
- title = Fcar (menu);
- CHECK_STRING (title);
-
- list_of_panes (Fcdr (menu));
-
- keymaps = 0;
- }
-
- if (NILP (position))
- {
- discard_menu_items ();
- UNGCPRO;
- return Qnil;
- }
-
-#ifdef HAVE_MENUS
- /* If resources from a previous popup menu still exist, does nothing
- until the `menu_free_timer' has freed them (see w32fns.c). This
- can occur if you press ESC or click outside a menu without selecting
- a menu item.
- */
- if (current_popup_menu)
- {
- discard_menu_items ();
- UNGCPRO;
- return Qnil;
- }
-
- /* Display them in a menu. */
- BLOCK_INPUT;
-
- selection = w32_menu_show (f, xpos, ypos, for_click,
- keymaps, title, &error_name);
- UNBLOCK_INPUT;
-
- discard_menu_items ();
-
-#endif /* HAVE_MENUS */
-
- UNGCPRO;
-
- if (error_name) error (error_name);
- return selection;
-}
-
#ifdef HAVE_MENUS
DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 3, 0,
UNBLOCK_INPUT;
discard_menu_items ();
+ FRAME_X_DISPLAY_INFO (f)->grabbed = 0;
if (error_name) error (error_name);
return selection;
f->output_data.w32->menubar_active = 0;
}
-\f
-/* Set up data i 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 (SYMBOLP (mapvec[i])
- || (CONSP (mapvec[i]) && !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;
-
- 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 (AREF (menu_items, i), Qnil))
- {
- submenu_stack[submenu_depth++] = save_wv;
- save_wv = prev_wv;
- prev_wv = 0;
- i++;
- }
- else if (EQ (AREF (menu_items, i), Qlambda))
- {
- prev_wv = save_wv;
- save_wv = submenu_stack[--submenu_depth];
- i++;
- }
- else if (EQ (AREF (menu_items, 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 (AREF (menu_items, i), Qquote))
- i += 1;
- else if (EQ (AREF (menu_items, i), Qt))
- {
- /* Create a new pane. */
- Lisp_Object pane_name, prefix;
- char *pane_string;
-
- pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME);
- prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX);
-
- if (STRINGP (pane_name))
- {
- if (unicode_append_menu)
- /* Encode as UTF-8 for now. */
- pane_name = ENCODE_UTF_8 (pane_name);
- else if (STRING_MULTIBYTE (pane_name))
- pane_name = ENCODE_SYSTEM (pane_name);
-
- ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
- }
-
- 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;
- 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;
-
- 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);
-
- if (STRINGP (item_name))
- {
- if (unicode_append_menu)
- item_name = ENCODE_UTF_8 (item_name);
- else if (STRING_MULTIBYTE (item_name))
- item_name = ENCODE_SYSTEM (item_name);
-
- ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
- }
-
- if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
- {
- descrip = ENCODE_SYSTEM (descrip);
- ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
- }
-
- 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;
-}
-
-
\f
/* Set the contents of the menubar widgets of frame F.
The argument FIRST_TIME is currently ignored;
/* 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 (XVECTOR (items)->size * sizeof (int *));
}
set_buffer_internal_1 (prev);
- unbind_to (specpdl_count, Qnil);
/* If there has been no change in the Lisp-level contents
of the menu bar, skip redisplaying it. Just exit. */
if (i == menu_items_used && i == previous_menu_items_used && i != 0)
{
free_menubar_widget_value_tree (first_wv);
- menu_items = Qnil;
-
+ discard_menu_items ();
+ unbind_to (specpdl_count, Qnil);
return;
}
+ f->menu_bar_vector = 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.
update_submenu_strings (wv->contents);
wv = wv->next;
}
-
- f->menu_bar_vector = menu_items;
- f->menu_bar_items_used = menu_items_used;
- menu_items = Qnil;
}
else
{
ERROR is a place to store an error message string in case of failure.
(We return nil on failure, but the value doesn't actually matter.) */
-static Lisp_Object
-w32_menu_show (f, x, y, for_click, keymaps, title, error)
- FRAME_PTR f;
- int x;
- int y;
- int for_click;
- int keymaps;
- Lisp_Object title;
- char **error;
+Lisp_Object
+w32_menu_show (FRAME_PTR f, int x, int y, int for_click, int keymaps,
+ Lisp_Object title, char **error)
{
int i;
int menu_item_selection;
*error = NULL;
+ if (menu_items_n_panes == 0)
+ return Qnil;
+
if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
{
*error = "Empty menu";
abort ();
wv->selected = !NILP (selected);
+
if (!STRINGP (help))
help = Qnil;
first_wv->contents = wv_title;
}
+ /* No selection has been chosen yet. */
+ menu_item_selection = 0;
+
/* Actually create the menu. */
current_popup_menu = menu = CreatePopupMenu ();
fill_in_menu (menu, first_wv->contents);
pos.y = y;
ClientToScreen (FRAME_W32_WINDOW (f), &pos);
- /* No selection has been chosen yet. */
- menu_item_selection = 0;
-
/* Display the menu. */
menu_item_selection = SendMessage (FRAME_W32_WINDOW (f),
WM_EMACS_TRACKPOPUPMENU,
/* Clean up extraneous mouse events which might have been generated
during the call. */
discard_mouse_events ();
+ FRAME_X_DISPLAY_INFO (f)->grabbed = 0;
/* Free the widget_value objects we used to specify the contents. */
free_menubar_widget_value_tree (first_wv);
complicated than simple yes/no type questions for which we can use
the MessageBox function.
*/
-
+
static char * button_names [] = {
"button1", "button2", "button3", "button4", "button5",
"button6", "button7", "button8", "button9", "button10" };
void syms_of_w32menu ()
{
globals_of_w32menu ();
- staticpro (&menu_items);
- menu_items = Qnil;
current_popup_menu = NULL;
DEFSYM (Qdebug_on_next_call, "debug-on-next-call");
- defsubr (&Sx_popup_menu);
defsubr (&Smenu_or_popup_active_p);
#ifdef HAVE_MENUS
defsubr (&Sx_popup_dialog);