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231
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1 /* Implements an elisp-programmable menubar -- Win32
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2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Tinker Systems and INS Engineering Corp.
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4 Copyright (C) 1997 Kirill M. Katsnelson <kkm@kis.ru>
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Not in FSF. */
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24
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25 /* Autorship:
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26 Initially written by kkm 12/24/97,
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27 peeking into and copying stuff from menubar-x.c
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28 */
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29
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30 /* Algotirhm for handling menus is as follows. When window's menubar
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31 * is created, current-menubar is not traversed in depth. Rather, only
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32 * top level items, both items and pulldowns, are added to the
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33 * menubar. Each pulldown is initially empty. When a pulldown is
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34 * selected and about to open, corresponding element of
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35 * current-menubar is found, and the newly open pulldown is
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36 * populated. This is made again in the same non-recursive manner.
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37 *
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38 * This algorithm uses hash tables to find out element of the menu
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39 * descriptor list given menu handle. The key is an opaque ptr data
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40 * type, keeping menu handle, and the value is a list of strings
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41 * representing the path from the root of the menu to the item
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42 * descriptor. Each frame has an associated hashtable.
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43 *
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44 * Leaf items are assigned a unique id based on item's hash. When an
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45 * item is selected, Windows sends back the id. Unfortunately, only
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46 * low 16 bit of the ID are sent, and there's no way to get the 32-bit
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47 * value. Yes, Win32 is just a different set of bugs than X! Aside
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48 * from this blame, another hasing mechanism is required to map menu
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49 * ids to commands (which are actually Lisp_Object's). This mapping is
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50 * performed in the same hashtable, as the lifetime of both maps is
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51 * exactly the same. This is unabmigous, as menu handles are
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52 * represented by lisp opaques, while command ids are by lisp
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53 * integers. The additional advantage for this is that command forms
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54 * are automatically GC-protected, which is important because these
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55 * may be transient forms generated by :filter functions.
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56 *
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57 * The hashtable is not allowed to grow too much; it is pruned
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58 * whenever this is safe to do. This is done by re-creating the menu
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59 * bar, and clearing and refilling the hash table from scratch.
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60 *
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61 * Popup menus are handled identially to pulldowns. A static hash
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62 * table is used for popup menus, and lookup is made not in
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63 * current-menubar but in a lisp form supplied to the `popup'
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64 * function.
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65 *
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66 * Another Windows weirdness is that there's no way to tell that a
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67 * popup has been dismissed without making selection. We need to know
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68 * that to cleanup the popup menu hashtable, but this is not honestly
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69 * doable using *documented* sequence of messages. Sticking to
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70 * particular knowledge is bad because this may break in Windows NT
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71 * 5.0, or Windows 98, or other future version. Instead, I allow the
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72 * hashtables to hang around, and not clear them, unless WM_COMMAND is
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73 * received. This is worthy some memory but more safe. Hacks welcome,
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74 * anyways!
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75 *
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76 */
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77
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78 #include <config.h>
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79 #include "lisp.h"
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272
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80 #include <limits.h>
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231
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81
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82 #include "buffer.h"
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83 #include "commands.h"
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84 #include "console-msw.h"
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85 #include "elhash.h"
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86 #include "events.h"
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87 #include "frame.h"
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88 #include "gui.h"
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89 #include "lisp.h"
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90 #include "menubar.h"
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91 #include "menubar-msw.h"
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92 #include "opaque.h"
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93 #include "window.h"
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94
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269
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95 /* #### */
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96 #define REPLACE_ME_WITH_GLOBAL_VARIABLE_WHICH_CONTROLS_RIHGT_FLUSH 0
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97
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231
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98 #define EMPTY_ITEM_ID ((UINT)LISP_TO_VOID (Qunbound))
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99 #define EMPTY_ITEM_NAME "(empty)"
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100
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233
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101 /* Current menu (bar or popup) descriptor. gcpro'ed */
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102 static Lisp_Object current_menudesc;
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231
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103
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233
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104 /* Current menubar or popup hashtable. gcpro'ed */
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105 static Lisp_Object current_hashtable;
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231
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106
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107 /* This is used to allocate unique ids to menu items.
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108 Items ids are in MENU_ITEM_ID_MIN to MENU_ITEM_ID_MAX.
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109 Allocation checks that the item is not already in
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110 the TOP_LEVEL_MENU */
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251
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111
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112 /* #### defines go to gui-msw.h, as the range is shared with toolbars
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113 (If only toolbars will be implemented as common controls) */
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231
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114 #define MENU_ITEM_ID_MIN 0x8000
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115 #define MENU_ITEM_ID_MAX 0xFFFF
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116 #define MENU_ITEM_ID_BITS(x) ((x) & 0x7FFF | 0x8000)
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117 static HMENU top_level_menu;
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118
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251
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119 #define MAX_MENUITEM_LENGTH 128
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231
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120
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121 /*
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122 * This returns Windows-style menu item string:
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123 * "Left Flush\tRight Flush"
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124 */
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251
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125 static char*
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126 displayable_menu_item (struct gui_item* pgui_item)
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231
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127 {
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128 /* We construct the name in a static buffer. That's fine, beause
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129 menu items longer than 128 chars are probably programming errors,
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130 and better be caught than displayed! */
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131
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251
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132 static char buf[MAX_MENUITEM_LENGTH+2];
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133 unsigned int ll, lr;
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231
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134
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251
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135 /* Left flush part of the string */
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136 ll = gui_item_display_flush_left (pgui_item, buf, MAX_MENUITEM_LENGTH);
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231
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137
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251
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138 /* Right flush part */
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139 assert (MAX_MENUITEM_LENGTH > ll + 1);
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140 lr = gui_item_display_flush_right (pgui_item, buf + ll + 1,
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141 MAX_MENUITEM_LENGTH - ll - 1);
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142 if (lr)
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143 buf [ll] = '\t';
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231
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144
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145 return buf;
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146 }
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147
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148 /*
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149 * hmenu_to_lisp_object() returns an opaque ptr given menu handle.
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150 */
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151 static Lisp_Object
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152 hmenu_to_lisp_object (HMENU hmenu)
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153 {
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154 return make_opaque_ptr (hmenu);
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155 }
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156
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157 /*
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158 * Allocation tries a hash based on item's path and name first. This
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159 * almost guarantees that the same item will override its old value in
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160 * the hashtable rather than abandon it.
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161 */
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162 static Lisp_Object
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251
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163 allocate_menu_item_id (Lisp_Object path, Lisp_Object name, Lisp_Object suffix)
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231
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164 {
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251
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165 UINT id = MENU_ITEM_ID_BITS (HASH3 (internal_hash (path, 0),
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166 internal_hash (name, 0),
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167 internal_hash (suffix, 0)));
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231
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168 do {
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169 id = MENU_ITEM_ID_BITS (id + 1);
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170 } while (GetMenuState (top_level_menu, id, MF_BYCOMMAND) != 0xFFFFFFFF);
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171 return make_int (id);
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172 }
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173
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174 static HMENU
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175 create_empty_popup_menu (void)
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176 {
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251
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177 return CreatePopupMenu ();
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231
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178 }
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179
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180 static void
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181 empty_menu (HMENU menu, int add_empty_p)
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182 {
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183 while (DeleteMenu (menu, 0, MF_BYPOSITION));
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184 if (add_empty_p)
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185 AppendMenu (menu, MF_STRING | MF_GRAYED, EMPTY_ITEM_ID, EMPTY_ITEM_NAME);
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186 }
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187
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233
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188 /*
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189 * The idea of checksumming is that we must hash minimal object
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190 * which is neccessarily changes when the item changes. For separator
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191 * this is a constant, for grey strings and submenus these are hashes
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192 * of names, since sumbenus are unpopulated until opened so always
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193 * equal otherwise. For items, this is a full hash value of a callback,
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194 * because a callback may me a form which can be changed only somewhere
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195 * in depth.
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196 */
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197 static unsigned long
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198 checksum_menu_item (Lisp_Object item)
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199 {
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200 if (STRINGP (item))
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201 {
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202 /* Separator or unselectable text - hash as a string + 13 */
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203 if (separator_string_p (XSTRING_DATA (item)))
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204 return 13;
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205 else
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206 return internal_hash (item, 0) + 13;
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207 }
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208 else if (CONSP (item))
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209 {
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210 /* Submenu - hash by its string name + 0 */
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211 return internal_hash (XCAR(item), 0);
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212 }
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213 else if (VECTORP (item))
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214 {
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215 /* An ordinary item - hash its name and callback form. */
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251
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216 return HASH2 (internal_hash (XVECTOR_DATA(item)[0], 0),
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217 internal_hash (XVECTOR_DATA(item)[1], 0));
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233
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218 }
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219
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220 /* An error - will be caught later */
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221 return 0;
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222 }
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223
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231
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224 static void
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225 populate_menu_add_item (HMENU menu, Lisp_Object path,
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226 Lisp_Object hash_tab, Lisp_Object item, int flush_right)
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227 {
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228 MENUITEMINFO item_info;
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229
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230 item_info.cbSize = sizeof (item_info);
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231 item_info.fMask = MIIM_TYPE | MIIM_STATE | MIIM_ID;
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232 item_info.fState = 0;
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233 item_info.wID = 0;
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234 item_info.fType = 0;
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235
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236 if (STRINGP (item))
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237 {
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238 /* Separator or unselectable text */
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239 if (separator_string_p (XSTRING_DATA (item)))
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240 item_info.fType = MFT_SEPARATOR;
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241 else
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242 {
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243 item_info.fType = MFT_STRING;
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244 item_info.fState = MFS_DISABLED;
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245 item_info.dwTypeData = XSTRING_DATA (item);
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246 }
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247 }
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248 else if (CONSP (item))
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249 {
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250 /* Submenu */
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251 HMENU submenu;
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251
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252 struct gui_item gui_item;
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253 struct gcpro gcpro1;
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254
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255 gui_item_init (&gui_item);
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269
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256 GCPRO_GUI_ITEM (&gui_item);
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251
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257
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258 menu_parse_submenu_keywords (item, &gui_item);
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259
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260 if (!STRINGP (gui_item.name))
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233
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261 signal_simple_error ("Menu name (first element) must be a string", item);
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231
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262
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251
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263 if (!gui_item_included_p (&gui_item, Vmenubar_configuration))
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231
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264 return;
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265
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251
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266 if (!gui_item_active_p (&gui_item))
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231
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267 item_info.fState = MFS_GRAYED;
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268 /* Temptation is to put 'else' right here. Although, the
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269 displayed item won't have an arrow indicating that it is a
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270 popup. So we go ahead a little bit more and create a popup */
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271 submenu = create_empty_popup_menu();
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272
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273 item_info.fMask |= MIIM_SUBMENU;
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251
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274 item_info.dwTypeData = displayable_menu_item (&gui_item);
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231
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275 item_info.hSubMenu = submenu;
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276
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277 if (!(item_info.fState & MFS_GRAYED))
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278 {
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279 /* Now add the full submenu path as a value to the hash table,
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280 keyed by menu handle */
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281 if (NILP(path))
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251
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282 /* list1 cannot GC */
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283 path = list1 (gui_item.name);
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284 else
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285 {
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286 Lisp_Object arg[2] = { path, list1 (gui_item.name) };
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287 /* Fappend gcpro'es its arg */
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288 path = Fappend (2, arg);
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289 }
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231
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290
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251
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291 /* Fputhash GCPRO'es PATH */
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231
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292 Fputhash (hmenu_to_lisp_object (submenu), path, hash_tab);
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293 }
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251
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294 UNGCPRO; /* gui_item */
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231
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295 }
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296 else if (VECTORP (item))
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297 {
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298 /* An ordinary item */
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251
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299 Lisp_Object style, id;
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300 struct gui_item gui_item;
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301 struct gcpro gcpro1;
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231
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302
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251
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303 gui_item_init (&gui_item);
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269
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304 GCPRO_GUI_ITEM (&gui_item);
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251
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305
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306 gui_parse_item_keywords (item, &gui_item);
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307
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308 if (!gui_item_included_p (&gui_item, Vmenubar_configuration))
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231
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309 return;
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310
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251
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311 if (!gui_item_active_p (&gui_item))
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312 item_info.fState = MFS_GRAYED;
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231
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313
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251
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314 style = (NILP (gui_item.selected) || NILP (Feval (gui_item.selected))
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315 ? Qnil : gui_item.style);
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316
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231
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317 if (EQ (style, Qradio))
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318 {
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319 item_info.fType |= MFT_RADIOCHECK;
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320 item_info.fState |= MFS_CHECKED;
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321 }
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322 else if (EQ (style, Qtoggle))
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323 {
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324 item_info.fState |= MFS_CHECKED;
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325 }
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326
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251
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327 id = allocate_menu_item_id (path, gui_item.name,
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328 gui_item.suffix);
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329 Fputhash (id, gui_item.callback, hash_tab);
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231
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330
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331 item_info.wID = (UINT) XINT(id);
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332 item_info.fType |= MFT_STRING;
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251
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333 item_info.dwTypeData = displayable_menu_item (&gui_item);
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334
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335 UNGCPRO; /* gui_item */
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231
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336 }
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337 else
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338 {
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251
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339 signal_simple_error ("Mailformed menu item descriptor", item);
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231
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340 }
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341
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342 if (flush_right)
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343 item_info.fType |= MFT_RIGHTJUSTIFY;
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344
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345 InsertMenuItem (menu, UINT_MAX, TRUE, &item_info);
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346 }
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347
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233
|
348 /*
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349 * This function is called from populate_menu and checksum_menu.
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350 * When called to populate, MENU is a menu handle, PATH is a
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351 * list of strings representing menu path from root to this submenu,
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352 * DESCRIPTOR is a menu descriptor, HASH_TAB is a hashtable associated
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353 * with root menu, BAR_P indicates whether this called for a menubar or
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354 * a popup, and POPULATE_P is non-zero. Return value must be ignored.
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355 * When called to checksum, DESCRIPTOR has the same meaning, POPULATE_P
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356 * is zero, PATH must be Qnil, and the rest of parameters is ignored.
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357 * Return value is the menu checksum.
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358 */
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359 static unsigned long
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251
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360 populate_or_checksum_helper (HMENU menu, Lisp_Object path, Lisp_Object desc,
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233
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361 Lisp_Object hash_tab, int bar_p, int populate_p)
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231
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362 {
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251
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363 Lisp_Object item_desc;
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231
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364 int deep_p, flush_right;
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|
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365 struct gcpro gcpro1;
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269
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366 unsigned long checksum;
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251
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367 struct gui_item gui_item;
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368
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369 gui_item_init (&gui_item);
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269
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370 GCPRO_GUI_ITEM (&gui_item);
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371
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372 /* We are sometimes called with the menubar unchanged, and with changed
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373 right flush. We have to update the menubar in ths case,
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374 so account for the compliance setting in the hash value */
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375 checksum = REPLACE_ME_WITH_GLOBAL_VARIABLE_WHICH_CONTROLS_RIHGT_FLUSH;
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231
|
376
|
|
|
377 /* Will initially contain only "(empty)" */
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233
|
378 if (populate_p)
|
|
|
379 empty_menu (menu, 1);
|
|
231
|
380
|
|
|
381 /* PATH set to nil indicates top-level popup or menubar */
|
|
|
382 deep_p = !NILP (path);
|
|
|
383
|
|
251
|
384 /* Fetch keywords prepending the item list */
|
|
|
385 desc = menu_parse_submenu_keywords (desc, &gui_item);
|
|
231
|
386
|
|
251
|
387 /* Check that menu name is specified when expected */
|
|
|
388 if (NILP (gui_item.name) && deep_p)
|
|
|
389 signal_simple_error ("Menu must have a name", desc);
|
|
231
|
390
|
|
251
|
391 /* Apply filter if specified */
|
|
|
392 if (!NILP (gui_item.filter))
|
|
|
393 desc = call1 (gui_item.filter, desc);
|
|
231
|
394
|
|
251
|
395 /* Loop thru the desc's CDR and add items for each entry */
|
|
231
|
396 flush_right = 0;
|
|
251
|
397 EXTERNAL_LIST_LOOP (item_desc, desc)
|
|
231
|
398 {
|
|
|
399 if (NILP (XCAR (item_desc)))
|
|
|
400 {
|
|
269
|
401 /* Do not flush right menubar items when MS style compiant */
|
|
|
402 if (bar_p && !REPLACE_ME_WITH_GLOBAL_VARIABLE_WHICH_CONTROLS_RIHGT_FLUSH)
|
|
231
|
403 flush_right = 1;
|
|
233
|
404 if (!populate_p)
|
|
|
405 checksum = HASH2 (checksum, Qnil);
|
|
231
|
406 }
|
|
233
|
407 else if (populate_p)
|
|
231
|
408 populate_menu_add_item (menu, path, hash_tab,
|
|
|
409 XCAR (item_desc), flush_right);
|
|
233
|
410 else
|
|
|
411 checksum = HASH2 (checksum,
|
|
|
412 checksum_menu_item (XCAR (item_desc)));
|
|
231
|
413 }
|
|
|
414
|
|
233
|
415 if (populate_p)
|
|
|
416 {
|
|
|
417 /* Remove the "(empty)" item, if there are other ones */
|
|
|
418 if (GetMenuItemCount (menu) > 1)
|
|
|
419 RemoveMenu (menu, EMPTY_ITEM_ID, MF_BYCOMMAND);
|
|
231
|
420
|
|
233
|
421 /* Add the header to the popup, if told so. The same as in X - an
|
|
|
422 insensitive item, and a separator (Seems to me, there were
|
|
|
423 two separators in X... In Windows this looks ugly, anywats. */
|
|
251
|
424 if (!bar_p && !deep_p && popup_menu_titles && !NILP(gui_item.name))
|
|
233
|
425 {
|
|
251
|
426 CHECK_STRING (gui_item.name);
|
|
233
|
427 InsertMenu (menu, 0, MF_BYPOSITION | MF_STRING | MF_DISABLED,
|
|
251
|
428 0, XSTRING_DATA(gui_item.name));
|
|
233
|
429 InsertMenu (menu, 1, MF_BYPOSITION | MF_SEPARATOR, 0, NULL);
|
|
|
430 SetMenuDefaultItem (menu, 0, MF_BYPOSITION);
|
|
|
431 }
|
|
231
|
432 }
|
|
251
|
433 UNGCPRO; /* gui_item */
|
|
233
|
434 return checksum;
|
|
|
435 }
|
|
|
436
|
|
|
437 static void
|
|
251
|
438 populate_menu (HMENU menu, Lisp_Object path, Lisp_Object desc,
|
|
233
|
439 Lisp_Object hash_tab, int bar_p)
|
|
|
440 {
|
|
251
|
441 populate_or_checksum_helper (menu, path, desc, hash_tab, bar_p, 1);
|
|
233
|
442 }
|
|
|
443
|
|
|
444 static unsigned long
|
|
251
|
445 checksum_menu (Lisp_Object desc)
|
|
231
|
446 {
|
|
251
|
447 return populate_or_checksum_helper (NULL, Qnil, desc, Qunbound, 0, 0);
|
|
231
|
448 }
|
|
|
449
|
|
|
450 static void
|
|
|
451 update_frame_menubar_maybe (struct frame* f)
|
|
|
452 {
|
|
|
453 HMENU menubar = GetMenu (FRAME_MSWINDOWS_HANDLE (f));
|
|
|
454 struct window *w = XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f));
|
|
|
455 Lisp_Object desc = (!NILP (w->menubar_visible_p)
|
|
|
456 ? symbol_value_in_buffer (Qcurrent_menubar, w->buffer)
|
|
|
457 : Qnil);
|
|
|
458
|
|
251
|
459 top_level_menu = menubar;
|
|
|
460
|
|
231
|
461 if (NILP (desc) && menubar != NULL)
|
|
|
462 {
|
|
|
463 /* Menubar has gone */
|
|
|
464 FRAME_MSWINDOWS_MENU_HASHTABLE(f) = Qnil;
|
|
233
|
465 SetMenu (FRAME_MSWINDOWS_HANDLE (f), NULL);
|
|
231
|
466 DestroyMenu (menubar);
|
|
|
467 DrawMenuBar (FRAME_MSWINDOWS_HANDLE (f));
|
|
|
468 return;
|
|
|
469 }
|
|
|
470
|
|
|
471 if (!NILP (desc) && menubar == NULL)
|
|
|
472 {
|
|
|
473 /* Menubar has appeared */
|
|
|
474 menubar = CreateMenu ();
|
|
|
475 goto populate;
|
|
|
476 }
|
|
|
477
|
|
|
478 if (NILP (desc))
|
|
|
479 {
|
|
|
480 /* We did not have the bar and are not going to */
|
|
|
481 return;
|
|
|
482 }
|
|
|
483
|
|
233
|
484 /* Now we bail out if the menubar has not changed */
|
|
|
485 if (FRAME_MSWINDOWS_MENU_CHECKSUM(f) == checksum_menu (desc))
|
|
|
486 return;
|
|
231
|
487
|
|
|
488 populate:
|
|
|
489 /* Come with empty hash table */
|
|
|
490 if (NILP (FRAME_MSWINDOWS_MENU_HASHTABLE(f)))
|
|
|
491 FRAME_MSWINDOWS_MENU_HASHTABLE(f) = Fmake_hashtable (make_int (50), Qequal);
|
|
|
492 else
|
|
|
493 Fclrhash (FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
494
|
|
|
495 Fputhash (hmenu_to_lisp_object (menubar), Qnil,
|
|
|
496 FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
497 populate_menu (menubar, Qnil, desc,
|
|
|
498 FRAME_MSWINDOWS_MENU_HASHTABLE(f), 1);
|
|
|
499 SetMenu (FRAME_MSWINDOWS_HANDLE (f), menubar);
|
|
|
500 DrawMenuBar (FRAME_MSWINDOWS_HANDLE (f));
|
|
233
|
501
|
|
|
502 FRAME_MSWINDOWS_MENU_CHECKSUM(f) = checksum_menu (desc);
|
|
231
|
503 }
|
|
|
504
|
|
|
505 static void
|
|
|
506 prune_menubar (struct frame *f)
|
|
|
507 {
|
|
|
508 HMENU menubar = GetMenu (FRAME_MSWINDOWS_HANDLE (f));
|
|
|
509 Lisp_Object desc = current_frame_menubar (f);
|
|
|
510 if (menubar == NULL)
|
|
|
511 return;
|
|
|
512
|
|
|
513 /* #### If a filter function has set desc to Qnil, this abort()
|
|
233
|
514 triggers. To resolve, we must prevent filters explicitely from
|
|
|
515 mangling with the active menu. In apply_filter probably?
|
|
231
|
516 Is copy-tree on the whole menu too expensive? */
|
|
|
517 if (NILP(desc))
|
|
|
518 /* abort(); */
|
|
|
519 return;
|
|
|
520
|
|
|
521 /* We do the trick by removing all items and re-populating top level */
|
|
|
522 empty_menu (menubar, 0);
|
|
|
523
|
|
|
524 assert (HASHTABLEP (FRAME_MSWINDOWS_MENU_HASHTABLE(f)));
|
|
|
525 Fclrhash (FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
526
|
|
|
527 Fputhash (hmenu_to_lisp_object (menubar), Qnil,
|
|
|
528 FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
529 populate_menu (menubar, Qnil, desc,
|
|
|
530 FRAME_MSWINDOWS_MENU_HASHTABLE(f), 1);
|
|
|
531 }
|
|
|
532
|
|
|
533 /*
|
|
|
534 * This is called when cleanup is possible. It is better not to
|
|
|
535 * clean things up at all than do it too earaly!
|
|
|
536 */
|
|
|
537 static void
|
|
|
538 menu_cleanup (struct frame *f)
|
|
|
539 {
|
|
|
540 /* This function can GC */
|
|
233
|
541 current_menudesc = Qnil;
|
|
|
542 current_hashtable = Qnil;
|
|
|
543 prune_menubar (f);
|
|
231
|
544 }
|
|
|
545
|
|
|
546
|
|
|
547 /*------------------------------------------------------------------------*/
|
|
|
548 /* Message handlers */
|
|
|
549 /*------------------------------------------------------------------------*/
|
|
|
550 static Lisp_Object
|
|
|
551 unsafe_handle_wm_initmenupopup_1 (HMENU menu, struct frame* f)
|
|
|
552 {
|
|
|
553 /* This function can call lisp, beat dogs and stick chewing gum to
|
|
|
554 everything! */
|
|
|
555
|
|
233
|
556 Lisp_Object path, desc;
|
|
231
|
557 struct gcpro gcpro1;
|
|
|
558
|
|
|
559 /* Find which guy is going to explode */
|
|
233
|
560 path = Fgethash (hmenu_to_lisp_object (menu), current_hashtable, Qunbound);
|
|
231
|
561 assert (!UNBOUNDP (path));
|
|
233
|
562 #ifdef DEBUG_XEMACS
|
|
|
563 /* Allow to continue in a debugger after assert - not so fatal */
|
|
|
564 if (UNBOUNDP (path))
|
|
|
565 error ("internal menu error");
|
|
|
566 #endif
|
|
231
|
567
|
|
|
568 /* Now find a desc chunk for it. If none, then probably menu open
|
|
|
569 hook has played too much games around stuff */
|
|
251
|
570 desc = Fmenu_find_real_submenu (current_menudesc, path);
|
|
|
571 if (NILP (desc))
|
|
|
572 signal_simple_error ("This menu does not exist any more", path);
|
|
231
|
573
|
|
|
574 /* Now, stuff it */
|
|
|
575 /* DESC may be generated by filter, so we have to gcpro it */
|
|
|
576 GCPRO1 (desc);
|
|
233
|
577 populate_menu (menu, path, desc, current_hashtable, 0);
|
|
231
|
578 UNGCPRO;
|
|
|
579 return Qt;
|
|
|
580 }
|
|
|
581
|
|
|
582 static Lisp_Object
|
|
|
583 unsafe_handle_wm_initmenu_1 (struct frame* f)
|
|
|
584 {
|
|
|
585 /* This function can call lisp */
|
|
251
|
586
|
|
|
587 /* NOTE: This is called for the bar only, WM_INITMENU
|
|
|
588 for popups is filtered out */
|
|
|
589
|
|
231
|
590 /* #### - this menubar update mechanism is expensively anti-social and
|
|
|
591 the activate-menubar-hook is now mostly obsolete. */
|
|
|
592
|
|
|
593 /* We simply ignore return value. In any case, we construct the bar
|
|
|
594 on the fly */
|
|
|
595 run_hook (Vactivate_menubar_hook);
|
|
233
|
596
|
|
231
|
597 update_frame_menubar_maybe (f);
|
|
233
|
598
|
|
|
599 current_menudesc = current_frame_menubar (f);
|
|
|
600 current_hashtable = FRAME_MSWINDOWS_MENU_HASHTABLE(f);
|
|
|
601 assert (HASHTABLEP (current_hashtable));
|
|
|
602
|
|
231
|
603 return Qt;
|
|
|
604 }
|
|
|
605
|
|
|
606 /*
|
|
|
607 * Return value is Qt if we have dispatched the command,
|
|
|
608 * or Qnil if id has not been mapped to a callback.
|
|
|
609 * Window procedure may try other targets to route the
|
|
|
610 * command if we return nil
|
|
|
611 */
|
|
|
612 Lisp_Object
|
|
|
613 mswindows_handle_wm_command (struct frame* f, WORD id)
|
|
|
614 {
|
|
|
615 /* Try to map the command id through the proper hash table */
|
|
233
|
616 Lisp_Object command, funcsym, frame;
|
|
231
|
617 struct gcpro gcpro1;
|
|
|
618
|
|
233
|
619 command = Fgethash (make_int (id), current_hashtable, Qunbound);
|
|
231
|
620 if (UNBOUNDP (command))
|
|
|
621 {
|
|
|
622 menu_cleanup (f);
|
|
|
623 return Qnil;
|
|
|
624 }
|
|
|
625
|
|
|
626 /* Need to gcpro because the hashtable may get destroyed
|
|
|
627 by menu_cleanup(), and will not gcpro the command
|
|
|
628 any more */
|
|
|
629 GCPRO1 (command);
|
|
|
630 menu_cleanup (f);
|
|
|
631
|
|
|
632 /* Ok, this is our one. Enqueue it. */
|
|
|
633 if (SYMBOLP (command))
|
|
|
634 funcsym = Qcall_interactively;
|
|
|
635 else if (CONSP (command))
|
|
|
636 funcsym = Qeval;
|
|
|
637 else
|
|
251
|
638 signal_simple_error ("Callback must be either evallable form or a symbol",
|
|
|
639 command);
|
|
231
|
640
|
|
|
641 XSETFRAME (frame, f);
|
|
|
642 enqueue_misc_user_event (frame, funcsym, command);
|
|
233
|
643
|
|
|
644 /* Needs good bump also, for WM_COMMAND may have been dispatched from
|
|
|
645 mswindows_need_event, which will block again despite new command
|
|
|
646 event has arrived */
|
|
|
647 mswindows_enqueue_magic_event (FRAME_MSWINDOWS_HANDLE(f),
|
|
|
648 XM_BUMPQUEUE);
|
|
231
|
649
|
|
|
650 UNGCPRO; /* command */
|
|
|
651 return Qt;
|
|
|
652 }
|
|
|
653
|
|
|
654
|
|
|
655 /*------------------------------------------------------------------------*/
|
|
|
656 /* Message handling proxies */
|
|
|
657 /*------------------------------------------------------------------------*/
|
|
|
658
|
|
|
659 static HMENU wm_initmenu_menu;
|
|
|
660 static struct frame* wm_initmenu_frame;
|
|
|
661
|
|
|
662 static Lisp_Object
|
|
|
663 unsafe_handle_wm_initmenupopup (Lisp_Object u_n_u_s_e_d)
|
|
|
664 {
|
|
|
665 return unsafe_handle_wm_initmenupopup_1 (wm_initmenu_menu, wm_initmenu_frame);
|
|
|
666 }
|
|
|
667
|
|
|
668 static Lisp_Object
|
|
|
669 unsafe_handle_wm_initmenu (Lisp_Object u_n_u_s_e_d)
|
|
|
670 {
|
|
|
671 return unsafe_handle_wm_initmenu_1 (wm_initmenu_frame);
|
|
|
672 }
|
|
|
673
|
|
|
674 Lisp_Object
|
|
|
675 mswindows_handle_wm_initmenupopup (HMENU hmenu, struct frame* frm)
|
|
|
676 {
|
|
|
677 /* We cannot pass hmenu as a lisp object. Use static var */
|
|
|
678 wm_initmenu_menu = hmenu;
|
|
|
679 wm_initmenu_frame = frm;
|
|
|
680 return mswindows_protect_modal_loop (unsafe_handle_wm_initmenupopup, Qnil);
|
|
|
681 }
|
|
|
682
|
|
|
683 Lisp_Object
|
|
233
|
684 mswindows_handle_wm_initmenu (HMENU hmenu, struct frame* f)
|
|
231
|
685 {
|
|
233
|
686 /* Handle only frame menubar, ignore if from popup or system menu */
|
|
|
687 if (GetMenu (FRAME_MSWINDOWS_HANDLE(f)) == hmenu)
|
|
|
688 {
|
|
|
689 wm_initmenu_frame = f;
|
|
|
690 return mswindows_protect_modal_loop (unsafe_handle_wm_initmenu, Qnil);
|
|
|
691 }
|
|
|
692 return Qt;
|
|
231
|
693 }
|
|
|
694
|
|
251
|
695 /* #### This function goes away. Removing it now may
|
|
|
696 interfere with pending patch 980128-jhar */
|
|
231
|
697 Lisp_Object
|
|
|
698 mswindows_handle_wm_exitmenuloop (struct frame* f)
|
|
|
699 {
|
|
|
700 return Qt;
|
|
|
701 }
|
|
|
702
|
|
|
703
|
|
|
704 /*------------------------------------------------------------------------*/
|
|
|
705 /* Methods */
|
|
|
706 /*------------------------------------------------------------------------*/
|
|
|
707
|
|
|
708 static void
|
|
|
709 mswindows_update_frame_menubars (struct frame* f)
|
|
|
710 {
|
|
269
|
711 update_frame_menubar_maybe (f);
|
|
231
|
712 }
|
|
|
713
|
|
|
714 static void
|
|
|
715 mswindows_free_frame_menubars (struct frame* f)
|
|
|
716 {
|
|
|
717 FRAME_MSWINDOWS_MENU_HASHTABLE(f) = Qnil;
|
|
|
718 }
|
|
|
719
|
|
|
720 static void
|
|
|
721 mswindows_popup_menu (Lisp_Object menu_desc, Lisp_Object event)
|
|
|
722 {
|
|
|
723 struct frame *f = selected_frame ();
|
|
|
724 struct Lisp_Event *eev = NULL;
|
|
|
725 HMENU menu;
|
|
|
726 POINT pt;
|
|
|
727 int ok;
|
|
|
728
|
|
|
729 if (!NILP (event))
|
|
|
730 {
|
|
|
731 CHECK_LIVE_EVENT (event);
|
|
|
732 eev = XEVENT (event);
|
|
|
733 if (eev->event_type != button_press_event
|
|
|
734 && eev->event_type != button_release_event)
|
|
|
735 wrong_type_argument (Qmouse_event_p, event);
|
|
|
736 }
|
|
|
737 else if (!NILP (Vthis_command_keys))
|
|
|
738 {
|
|
|
739 /* if an event wasn't passed, use the last event of the event sequence
|
|
|
740 currently being executed, if that event is a mouse event */
|
|
|
741 eev = XEVENT (Vthis_command_keys); /* last event first */
|
|
|
742 if (eev->event_type != button_press_event
|
|
|
743 && eev->event_type != button_release_event)
|
|
|
744 eev = NULL;
|
|
|
745 }
|
|
|
746
|
|
|
747 /* Default is to put the menu at the point (10, 10) in frame */
|
|
|
748 if (eev)
|
|
|
749 {
|
|
|
750 pt.x = eev->event.button.x;
|
|
|
751 pt.y = eev->event.button.y;
|
|
|
752 ClientToScreen (FRAME_MSWINDOWS_HANDLE (f), &pt);
|
|
|
753 }
|
|
|
754 else
|
|
|
755 pt.x = pt.y = 10;
|
|
|
756
|
|
|
757 if (SYMBOLP (menu_desc))
|
|
|
758 menu_desc = Fsymbol_value (menu_desc);
|
|
|
759
|
|
233
|
760 current_menudesc = menu_desc;
|
|
|
761 current_hashtable = Fmake_hashtable (make_int(10), Qequal);
|
|
231
|
762 menu = create_empty_popup_menu();
|
|
233
|
763 Fputhash (hmenu_to_lisp_object (menu), Qnil, current_hashtable);
|
|
251
|
764 top_level_menu = menu;
|
|
231
|
765
|
|
233
|
766 ok = TrackPopupMenu (menu,
|
|
|
767 TPM_LEFTALIGN | TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
|
|
231
|
768 pt.x, pt.y, 0,
|
|
|
769 FRAME_MSWINDOWS_HANDLE (f), NULL);
|
|
|
770
|
|
|
771 DestroyMenu (menu);
|
|
|
772
|
|
|
773 /* Signal a signal if caught by Track...() modal loop */
|
|
|
774 mswindows_unmodalize_signal_maybe ();
|
|
|
775
|
|
|
776 /* This is probably the only real reason for failure */
|
|
|
777 if (!ok) {
|
|
|
778 menu_cleanup (f);
|
|
233
|
779 signal_simple_error ("Cannot track popup menu while in menu",
|
|
231
|
780 menu_desc);
|
|
|
781 }
|
|
|
782 }
|
|
|
783
|
|
|
784
|
|
|
785 /*------------------------------------------------------------------------*/
|
|
|
786 /* Initialization */
|
|
|
787 /*------------------------------------------------------------------------*/
|
|
|
788 void
|
|
|
789 syms_of_menubar_mswindows (void)
|
|
|
790 {
|
|
|
791 }
|
|
|
792
|
|
|
793 void
|
|
|
794 console_type_create_menubar_mswindows (void)
|
|
|
795 {
|
|
|
796 CONSOLE_HAS_METHOD (mswindows, update_frame_menubars);
|
|
|
797 CONSOLE_HAS_METHOD (mswindows, free_frame_menubars);
|
|
|
798 CONSOLE_HAS_METHOD (mswindows, popup_menu);
|
|
|
799 }
|
|
|
800
|
|
|
801 void
|
|
|
802 vars_of_menubar_mswindows (void)
|
|
|
803 {
|
|
233
|
804 current_menudesc = Qnil;
|
|
|
805 current_hashtable = Qnil;
|
|
231
|
806
|
|
233
|
807 staticpro (¤t_menudesc);
|
|
|
808 staticpro (¤t_hashtable);
|
|
253
|
809 }
|
