widget_value * digest_single_submenu (int start, int end, bool top_level_items) { widget_value *wv, *prev_wv, *save_wv, *first_wv; int i; int submenu_depth = 0; widget_value **submenu_stack; bool panes_seen = 0; struct frame *f = XFRAME (Vmenu_updating_frame); USE_SAFE_ALLOCA; SAFE_NALLOCA (submenu_stack, 1, menu_items_used); wv = make_widget_value ("menu", NULL, true, Qnil); wv->button_type = BUTTON_TYPE_NONE; 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; const char *pane_string; panes_seen = 1; pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME); /* TTY menus display menu items via tty_write_glyphs, which will encode the strings as appropriate. */ if (!FRAME_TERMCAP_P (f)) { #ifdef HAVE_NTGUI 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); } #elif defined (USE_LUCID) && defined (HAVE_XFT) if (STRINGP (pane_name)) { pane_name = ENCODE_UTF_8 (pane_name); ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); } #elif !defined (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) ? "" : SSDATA (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, "")) { /* Set value to 1 so update_submenu_strings can handle '@'. */ wv = make_widget_value (NULL, (char *) 1, true, Qnil); if (save_wv) save_wv->next = wv; else first_wv->contents = wv; wv->lname = pane_name; wv->button_type = BUTTON_TYPE_NONE; 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) emacs_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); /* TTY menu items and their descriptions will be encoded by tty_write_glyphs. */ if (!FRAME_TERMCAP_P (f)) { #ifdef HAVE_NTGUI 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); } #elif USE_LUCID if (STRINGP (item_name)) { item_name = ENCODE_UTF_8 (item_name); ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); } if (STRINGP (descrip)) { descrip = ENCODE_UTF_8 (descrip); ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); } #elif !defined (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 } wv = make_widget_value (NULL, NULL, !NILP (enable), STRINGP (help) ? help : Qnil); if (prev_wv) prev_wv->next = wv; else save_wv->contents = wv; wv->lname = item_name; if (!NILP (descrip)) wv->lkey = descrip; /* The intptr_t 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 *) (intptr_t) i : 0); 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 emacs_abort (); wv->selected = !NILP (selected); 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; first_wv = first_wv->contents; xfree (wv); } SAFE_FREE (); return first_wv; }
static Lisp_Object simple_dialog_show (struct frame *f, Lisp_Object contents, Lisp_Object header) { int answer; UINT type; Lisp_Object lispy_answer = Qnil, temp = XCAR (contents); type = MB_YESNO; /* Since we only handle Yes/No dialogs, and we already checked is_simple_dialog, we don't need to worry about checking contents to see what type of dialog to use. */ /* Use Unicode if possible, so any language can be displayed. */ if (unicode_message_box) { WCHAR *text; const WCHAR *title; USE_SAFE_ALLOCA; if (STRINGP (temp)) { char *utf8_text = SSDATA (ENCODE_UTF_8 (temp)); /* Be pessimistic about the number of characters needed. Remember characters outside the BMP will take more than one utf16 word, so we cannot simply use the character length of temp. */ int utf8_len = strlen (utf8_text); text = SAFE_ALLOCA ((utf8_len + 1) * sizeof (WCHAR)); utf8to16 ((unsigned char *)utf8_text, utf8_len, text); } else { text = (WCHAR *)L""; } if (NILP (header)) { title = L"Question"; type |= MB_ICONQUESTION; } else { title = L"Information"; type |= MB_ICONINFORMATION; } answer = unicode_message_box (FRAME_W32_WINDOW (f), text, title, type); SAFE_FREE (); } else { const char *text, *title; /* Fall back on ANSI message box, but at least use system encoding so questions representable by the system codepage are encoded properly. */ if (STRINGP (temp)) text = SSDATA (ENCODE_SYSTEM (temp)); else text = ""; if (NILP (header)) { title = "Question"; type |= MB_ICONQUESTION; } else { title = "Information"; type |= MB_ICONINFORMATION; } answer = MessageBox (FRAME_W32_WINDOW (f), text, title, type); } if (answer == IDYES) lispy_answer = build_string ("Yes"); else if (answer == IDNO) lispy_answer = build_string ("No"); else Fsignal (Qquit, Qnil); for (temp = XCDR (contents); CONSP (temp); temp = XCDR (temp)) { Lisp_Object item, name, value; item = XCAR (temp); if (CONSP (item)) { name = XCAR (item); value = XCDR (item); } else { name = item; value = Qnil; } if (!NILP (Fstring_equal (name, lispy_answer))) { return value; } } Fsignal (Qquit, Qnil); return Qnil; }
Lisp_Object w32_menu_show (struct frame *f, int x, int y, int menuflags, Lisp_Object title, const char **error) { int i; int menu_item_selection; HMENU menu; POINT pos; widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; widget_value **submenu_stack = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); Lisp_Object *subprefix_stack = (Lisp_Object *) alloca (menu_items_used * word_size); int submenu_depth = 0; bool first_pane; *error = NULL; if (menu_items_n_panes == 0) return Qnil; if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) { *error = "Empty menu"; return Qnil; } block_input (); /* Create a tree of widget_value objects representing the panes and their items. */ wv = make_widget_value ("menu", NULL, true, Qnil); wv->button_type = BUTTON_TYPE_NONE; first_wv = wv; first_pane = true; /* Loop over all panes and items, filling in the tree. */ i = 0; while (i < menu_items_used) { if (EQ (AREF (menu_items, i), Qnil)) { submenu_stack[submenu_depth++] = save_wv; save_wv = prev_wv; prev_wv = 0; first_pane = false; i++; } else if (EQ (AREF (menu_items, i), Qlambda)) { prev_wv = save_wv; save_wv = submenu_stack[--submenu_depth]; first_pane = false; 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; const 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) 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) ? "" : SSDATA (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 (!(menuflags & MENU_KEYMAPS) && strcmp (pane_string, "")) { wv = make_widget_value (pane_string, NULL, true, Qnil); if (save_wv) save_wv->next = wv; else first_wv->contents = wv; if ((menuflags & MENU_KEYMAPS) && !NILP (prefix)) wv->name++; wv->button_type = BUTTON_TYPE_NONE; save_wv = wv; prev_wv = 0; } else if (first_pane) { save_wv = wv; prev_wv = 0; } first_pane = false; i += MENU_ITEMS_PANE_LENGTH; } else { /* Create a new item within current pane. */ Lisp_Object item_name, enable, descrip, def, type, selected, 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 = make_widget_value (SSDATA (item_name), NULL, !NILP (enable), STRINGP (help) ? help : Qnil); if (prev_wv) prev_wv->next = wv; else save_wv->contents = wv; if (!NILP (descrip)) wv->key = SSDATA (descrip); /* Use the contents index as call_data, since we are restricted to 16-bits. */ wv->call_data = !NILP (def) ? (void *) (UINT_PTR) i : 0; if (NILP (type)) wv->button_type = BUTTON_TYPE_NONE; else if (EQ (type, QCtoggle)) wv->button_type = BUTTON_TYPE_TOGGLE; else if (EQ (type, QCradio)) wv->button_type = BUTTON_TYPE_RADIO; else emacs_abort (); wv->selected = !NILP (selected); prev_wv = wv; i += MENU_ITEMS_ITEM_LENGTH; } } /* Deal with the title, if it is non-nil. */ if (!NILP (title)) { widget_value *wv_title; widget_value *wv_sep = make_widget_value ("--", NULL, false, Qnil); /* Maybe replace this separator with a bitmap or owner-draw item so that it looks better. Having two separators looks odd. */ wv_sep->next = first_wv->contents; if (unicode_append_menu) title = ENCODE_UTF_8 (title); else if (STRING_MULTIBYTE (title)) title = ENCODE_SYSTEM (title); wv_title = make_widget_value (SSDATA (title), NULL, true, Qnil); wv_title->title = TRUE; wv_title->button_type = BUTTON_TYPE_NONE; wv_title->next = wv_sep; 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); /* Adjust coordinates to be root-window-relative. */ pos.x = x; pos.y = y; ClientToScreen (FRAME_W32_WINDOW (f), &pos); /* Display the menu. */ menu_item_selection = SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_TRACKPOPUPMENU, (WPARAM)menu, (LPARAM)&pos); /* Clean up extraneous mouse events which might have been generated during the call. */ discard_mouse_events (); FRAME_DISPLAY_INFO (f)->grabbed = 0; /* Free the widget_value objects we used to specify the contents. */ free_menubar_widget_value_tree (first_wv); DestroyMenu (menu); /* Free the owner-drawn and help-echo menu strings. */ w32_free_menu_strings (FRAME_W32_WINDOW (f)); f->output_data.w32->menubar_active = 0; /* Find the selected item, and its pane, to return the proper value. */ if (menu_item_selection != 0) { Lisp_Object prefix, entry; prefix = entry = Qnil; i = 0; while (i < menu_items_used) { if (EQ (AREF (menu_items, i), Qnil)) { subprefix_stack[submenu_depth++] = prefix; prefix = entry; i++; } else if (EQ (AREF (menu_items, i), Qlambda)) { prefix = subprefix_stack[--submenu_depth]; i++; } else if (EQ (AREF (menu_items, i), Qt)) { prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); 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 { entry = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE); if (menu_item_selection == i) { if (menuflags & MENU_KEYMAPS) { int j; entry = Fcons (entry, Qnil); if (!NILP (prefix)) entry = Fcons (prefix, entry); for (j = submenu_depth - 1; j >= 0; j--) if (!NILP (subprefix_stack[j])) entry = Fcons (subprefix_stack[j], entry); } unblock_input (); return entry; } i += MENU_ITEMS_ITEM_LENGTH; } } } else if (!(menuflags & MENU_FOR_CLICK)) { unblock_input (); /* Make "Cancel" equivalent to C-g. */ Fsignal (Qquit, Qnil); } unblock_input (); return Qnil; }
widget_value * digest_single_submenu (int start, int end, int 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; const 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]; #ifdef HAVE_NTGUI 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); } #elif defined (USE_LUCID) && defined (HAVE_XFT) if (STRINGP (pane_name)) { pane_name = ENCODE_UTF_8 (pane_name); ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); } #elif !defined (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); #ifdef HAVE_NTGUI 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); } #elif USE_LUCID if (STRINGP (item_name)) { item_name = ENCODE_UTF_8 (item_name); ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); } if (STRINGP (descrip)) { descrip = ENCODE_UTF_8 (descrip); ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); } #elif !defined (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 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; }