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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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80
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81 #include "buffer.h"
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82 #include "commands.h"
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83 #include "console-msw.h"
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84 #include "emacsfns.h"
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85 #include "elhash.h"
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86 #include "event-msw.h"
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87 #include "events.h"
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88 #include "frame.h"
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89 #include "gui.h"
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90 #include "lisp.h"
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91 #include "menubar.h"
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92 #include "menubar-msw.h"
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93 #include "opaque.h"
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94 #include "window.h"
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95
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96 #define EMPTY_ITEM_ID ((UINT)LISP_TO_VOID (Qunbound))
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97 #define EMPTY_ITEM_NAME "(empty)"
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98
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99 /* Qnil when there's no popup being tracked, or a descriptor
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100 for the popup. gcpro'ed */
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101 static Lisp_Object current_tracking_popup;
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102
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103 /* Current popup has table. Qnil when no popup. gcpro'ed */
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104 static Lisp_Object current_popup_hash_table;
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105
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106 /* Bound by menubar.el */
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107 static Lisp_Object Qfind_menu_item;
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108
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109 /* This is used to allocate unique ids to menu items.
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110 Items ids are in MENU_ITEM_ID_MIN to MENU_ITEM_ID_MAX.
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111 Allocation checks that the item is not already in
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112 the TOP_LEVEL_MENU */
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113 /* #### defines go to gui-msw.h */
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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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119 /* ============= THIS STUFF MIGHT GO SOMEWHERE ELSE ================= */
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120
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121 /* All these functions are windows sys independent, and are candidates
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122 to go to lisp code instead */
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123
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124 /*
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125 * DESCRIPTOR is a list in the form ({:keyword value}+ rest...).
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126 * This function extracts all the key-value pairs into the newly
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127 * created plist, and returns pointer to REST. Original list is not
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128 * modified (heaven save!)
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129 */
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130 Lisp_Object
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131 gui_parse_menu_keywords (Lisp_Object descriptor, Lisp_Object *plist)
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132 {
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133 Lisp_Object pair, key, val;
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134 *plist = Qnil;
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135 LIST_LOOP (pair, descriptor)
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136 {
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137 if (!CONSP(pair))
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138 signal_simple_error ("Mailformed gui entity descriptor", descriptor);
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139 key = XCAR(pair);
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140 if (!KEYWORDP (key))
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141 return pair;
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142 pair = XCDR (pair);
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143 if (!CONSP(pair))
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144 signal_simple_error ("Mailformed gui entity descriptor", descriptor);
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145 val = XCAR (pair);
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146 internal_plist_put (plist, key, val);
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147 }
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148 return pair;
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149 }
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150
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151 /*
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152 * DESC is a vector describing a menu item. The function returns menu
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153 * item name in NAME, callback form in CALLBACK, and all key-values
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154 * pairs in PLIST. For old-style vectors, the plist is faked.
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155 */
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156 void
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157 gui_parse_button_descriptor (Lisp_Object desc, Lisp_Object *name,
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158 Lisp_Object *callback, Lisp_Object *plist)
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159 {
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160 int length = XVECTOR_LENGTH (desc);
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161 Lisp_Object *contents = XVECTOR_DATA (desc);
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162 int plist_p;
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163
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164 *name = Qnil;
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165 *callback = Qnil;
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166 *plist = Qnil;
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167
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168 if (length < 3)
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169 signal_simple_error ("button descriptors must be at least 3 long", desc);
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170
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171 /* length 3: [ "name" callback active-p ]
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172 length 4: [ "name" callback active-p suffix ]
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173 or [ "name" callback keyword value ]
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174 length 5+: [ "name" callback [ keyword value ]+ ]
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175 */
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176 plist_p = (length >= 5 || KEYWORDP (contents [2]));
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177
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178 *name = contents [0];
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179 *callback = contents [1];
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180
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181 if (!plist_p)
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182 /* the old way */
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183 {
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184 internal_plist_put (plist, Q_active, contents [2]);
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185 if (length == 4)
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186 internal_plist_put (plist, Q_suffix, contents [3]);
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187 }
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188 else
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189 /* the new way */
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190 {
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191 int i;
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192 if (length & 1)
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193 signal_simple_error (
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194 "button descriptor has an odd number of keywords and values",
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195 desc);
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196
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197 for (i = 2; i < length;)
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198 {
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199 Lisp_Object key = contents [i++];
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200 Lisp_Object val = contents [i++];
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201 if (!KEYWORDP (key))
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202 signal_simple_error_2 ("not a keyword", key, desc);
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203 internal_plist_put (plist, key, val);
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204 }
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205 }
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206 }
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207
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208 /*
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209 * Given PLIST of key-value pairs for a menu item or button, consult
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210 * :included and :config properties (the latter against
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211 * CONFLIST). Return value is non-zero when item should *not* appear.
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212 */
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213 int
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214 gui_plist_says_item_excluded (Lisp_Object plist, Lisp_Object conflist)
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215 {
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216 Lisp_Object tem;
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217 /* This function can call lisp */
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218
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219 /* Evaluate :included first */
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220 tem = internal_plist_get (plist, Q_included);
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221 if (!UNBOUNDP (tem))
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222 {
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223 tem = Feval (tem);
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224 if (NILP (tem))
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225 return 1;
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226 }
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227
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228 /* Do :config if conflist is given */
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229 if (!NILP (conflist))
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230 {
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231 tem = internal_plist_get (plist, Q_config);
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232 if (!UNBOUNDP (tem))
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233 {
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234 tem = Fmemq (tem, conflist);
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235 if (NILP (tem))
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236 return 1;
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237 }
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238 }
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239
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240 return 0;
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241 }
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242
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243 /*
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244 * Given PLIST of key-value pairs for a menu item or button, consult
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245 * :active property. Return non-zero if the item is *inactive*
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246 */
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247 int
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248 gui_plist_says_item_inactive (Lisp_Object plist)
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249 {
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250 Lisp_Object tem;
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251 /* This function can call lisp */
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252
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253 tem = internal_plist_get (plist, Q_active);
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254 if (!UNBOUNDP (tem))
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255 {
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256 tem = Feval (tem);
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257 if (NILP (tem))
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258 return 1;
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259 }
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260
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261 return 0;
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262 }
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263
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264 /*
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265 * Given PLIST of key-value pairs for a menu item or button, evaluate
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266 * the form which is the value of :filter property. Filter function
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267 * given DESC as argument. If there's no :filter property, DESC is
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268 * returned, otherwise the value returned by the filter function is
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269 * returned.
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270 */
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271 Lisp_Object
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272 gui_plist_apply_filter (Lisp_Object plist, Lisp_Object desc)
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273 {
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274 Lisp_Object tem;
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275 /* This function can call lisp */
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276
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277 tem = internal_plist_get (plist, Q_filter);
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278 if (UNBOUNDP (tem))
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279 return desc;
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280 else
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281 return call1 (tem, desc);
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282 }
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283
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284 /*
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285 * This is tricky because there's no menu item styles in Windows, only
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286 * states: Each item may be given no checkmark, radio or check
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287 * mark. This function returns required mark style as determined by
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288 * PLIST. Return value is the value of :style property if the item is
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289 * :seleted, or nil otherwise
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290 */
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291 Lisp_Object
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292 gui_plist_get_current_style (Lisp_Object plist)
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293 {
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294 Lisp_Object style, selected;
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295 style = internal_plist_get (plist, Q_style);
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296 if (UNBOUNDP (style) || NILP(style))
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297 return Qnil;
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298
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299 selected = internal_plist_get (plist, Q_selected);
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300 if (UNBOUNDP (selected) || NILP(Feval(selected)))
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301 return Qnil;
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302
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303 return style;
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304 }
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305
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306 Lisp_Object
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307 current_frame_menubar (CONST struct frame* f)
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308 {
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309 struct window *w = XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f));
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310 return symbol_value_in_buffer (Qcurrent_menubar, w->buffer);
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311 }
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312
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313 /* ============ END IF STUFF THAT MIGHT GO SOMEWHERE ELSE =============== */
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314
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315 /* Change these together */
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316 #define MAX_MENUITEM_LENGTH 128
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317 #define DISPLAYABLE_MAX_MENUITEM_LENGTH "128"
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318
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319 static void
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320 signal_item_too_long (Lisp_Object name)
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321 {
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322 signal_simple_error ("Menu item is longer than "
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323 DISPLAYABLE_MAX_MENUITEM_LENGTH
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324 " characters", name);
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325 }
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326
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327 /* #### If this function returned (FLUSHLEFT . FLUSHRIGHT) it also
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328 could be moved above that line - it becomes window system
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329 independant */
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330 /*
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331 * This returns Windows-style menu item string:
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332 * "Left Flush\tRight Flush"
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333 */
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334 static CONST char*
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335 plist_get_menu_item_name (Lisp_Object name, Lisp_Object callback, Lisp_Object plist)
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336 {
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337 /* We construct the name in a static buffer. That's fine, beause
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338 menu items longer than 128 chars are probably programming errors,
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339 and better be caught than displayed! */
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340
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341 static char buf[MAX_MENUITEM_LENGTH];
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342 char* p = buf;
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343 int buf_left = MAX_MENUITEM_LENGTH - 1;
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344 Lisp_Object tem;
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345
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346 /* Get name first */
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347 buf_left -= XSTRING_LENGTH (name);
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348 if (buf_left < 0)
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349 signal_item_too_long (name);
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350 strcpy (p, XSTRING_DATA (name));
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351 p += XSTRING_LENGTH (name);
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352
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353 /* Have suffix? */
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354 tem = internal_plist_get (plist, Q_suffix);
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355 if (!UNBOUNDP (tem))
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356 {
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357 if (!STRINGP (tem))
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358 signal_simple_error (":suffix must be a string", tem);
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359 buf_left -= XSTRING_LENGTH (tem) + 1;
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360 if (buf_left < 0)
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361 signal_item_too_long (name);
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362 *p++ = ' ';
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363 strcpy (p, XSTRING_DATA (tem));
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364 p += XSTRING_LENGTH (tem);
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365 }
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366
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367 /* Have keys? */
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368 if (menubar_show_keybindings)
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369 {
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370 static char buf2 [1024];
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371 buf2[0] = 0;
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372
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373 tem = internal_plist_get (plist, Q_keys);
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374 if (!UNBOUNDP (tem))
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375 {
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376 if (!STRINGP (tem))
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377 signal_simple_error (":keys must be a string", tem);
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378 if (XSTRING_LENGTH (tem) > sizeof (buf2) - 1)
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379 signal_item_too_long (name);
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380 strcpy (buf2, XSTRING_DATA (tem));
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381 }
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382 else if (SYMBOLP (callback))
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383 {
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384 /* #### Warning, dependency here on current_buffer and point */
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385 /* #### I've borrowed this warning along with this code from
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386 menubar-x.c. What does that mean? -- kkm */
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387 where_is_to_char (callback, buf2);
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388 }
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389
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390 if (buf2 [0])
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391 {
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392 int n = strlen (buf2) + 1;
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393 buf_left -= n;
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394 if (buf_left < 0)
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395 signal_item_too_long (name);
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396 *p++ = '\t';
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397 strcpy (p, buf2);
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398 p += n-1;
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399 }
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400 }
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401
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402 *p = 0;
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403 return buf;
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404 }
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405
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406 /*
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|
|
407 * hmenu_to_lisp_object() returns an opaque ptr given menu handle.
|
|
|
408 */
|
|
|
409 static Lisp_Object
|
|
|
410 hmenu_to_lisp_object (HMENU hmenu)
|
|
|
411 {
|
|
|
412 return make_opaque_ptr (hmenu);
|
|
|
413 }
|
|
|
414
|
|
|
415 /*
|
|
|
416 * Allocation tries a hash based on item's path and name first. This
|
|
|
417 * almost guarantees that the same item will override its old value in
|
|
|
418 * the hashtable rather than abandon it.
|
|
|
419 */
|
|
|
420 static Lisp_Object
|
|
|
421 allocate_menu_item_id (Lisp_Object path, Lisp_Object name)
|
|
|
422 {
|
|
|
423 UINT id = MENU_ITEM_ID_BITS (HASH2 (internal_hash (path, 0),
|
|
|
424 internal_hash (name, 0)));
|
|
|
425 do {
|
|
|
426 id = MENU_ITEM_ID_BITS (id + 1);
|
|
|
427 } while (GetMenuState (top_level_menu, id, MF_BYCOMMAND) != 0xFFFFFFFF);
|
|
|
428 return make_int (id);
|
|
|
429 }
|
|
|
430
|
|
|
431 static HMENU
|
|
|
432 create_empty_popup_menu (void)
|
|
|
433 {
|
|
|
434 HMENU submenu = CreatePopupMenu ();
|
|
|
435 /* #### It seems that really we do not need "(empty)" at this stage */
|
|
|
436 #if 0
|
|
|
437 AppendMenu (submenu, MF_STRING | MF_GRAYED, EMPTY_ITEM_ID, EMPTY_ITEM_NAME);
|
|
|
438 #endif
|
|
|
439 return submenu;
|
|
|
440 }
|
|
|
441
|
|
|
442 static void
|
|
|
443 empty_menu (HMENU menu, int add_empty_p)
|
|
|
444 {
|
|
|
445 while (DeleteMenu (menu, 0, MF_BYPOSITION));
|
|
|
446 if (add_empty_p)
|
|
|
447 AppendMenu (menu, MF_STRING | MF_GRAYED, EMPTY_ITEM_ID, EMPTY_ITEM_NAME);
|
|
|
448 }
|
|
|
449
|
|
|
450 static void
|
|
|
451 populate_menu_add_item (HMENU menu, Lisp_Object path,
|
|
|
452 Lisp_Object hash_tab, Lisp_Object item, int flush_right)
|
|
|
453 {
|
|
|
454 MENUITEMINFO item_info;
|
|
|
455 struct gcpro gcpro1, gcpro2;
|
|
|
456
|
|
|
457 item_info.cbSize = sizeof (item_info);
|
|
|
458 item_info.fMask = MIIM_TYPE | MIIM_STATE | MIIM_ID;
|
|
|
459 item_info.fState = 0;
|
|
|
460 item_info.wID = 0;
|
|
|
461 item_info.fType = 0;
|
|
|
462
|
|
|
463 if (STRINGP (item))
|
|
|
464 {
|
|
|
465 /* Separator or unselectable text */
|
|
|
466 if (separator_string_p (XSTRING_DATA (item)))
|
|
|
467 item_info.fType = MFT_SEPARATOR;
|
|
|
468 else
|
|
|
469 {
|
|
|
470 item_info.fType = MFT_STRING;
|
|
|
471 item_info.fState = MFS_DISABLED;
|
|
|
472 item_info.dwTypeData = XSTRING_DATA (item);
|
|
|
473 }
|
|
|
474 }
|
|
|
475 else if (CONSP (item))
|
|
|
476 {
|
|
|
477 /* Submenu */
|
|
|
478 Lisp_Object subname = XCAR (item);
|
|
|
479 Lisp_Object plist;
|
|
|
480 HMENU submenu;
|
|
|
481
|
|
|
482 if (!STRINGP (subname))
|
|
|
483 signal_simple_error ("menu name (first element) must be a string", item);
|
|
|
484
|
|
|
485 item = gui_parse_menu_keywords (XCDR (item), &plist);
|
|
|
486 GCPRO1 (plist);
|
|
|
487
|
|
|
488 if (gui_plist_says_item_excluded (plist, Vmenubar_configuration))
|
|
|
489 return;
|
|
|
490
|
|
|
491 if (gui_plist_says_item_inactive (plist))
|
|
|
492 item_info.fState = MFS_GRAYED;
|
|
|
493 /* Temptation is to put 'else' right here. Although, the
|
|
|
494 displayed item won't have an arrow indicating that it is a
|
|
|
495 popup. So we go ahead a little bit more and create a popup */
|
|
|
496 submenu = create_empty_popup_menu();
|
|
|
497
|
|
|
498 item_info.fMask |= MIIM_SUBMENU;
|
|
|
499 item_info.dwTypeData = plist_get_menu_item_name (subname, Qnil, plist);
|
|
|
500 item_info.hSubMenu = submenu;
|
|
|
501
|
|
|
502 UNGCPRO; /* plist */
|
|
|
503
|
|
|
504 if (!(item_info.fState & MFS_GRAYED))
|
|
|
505 {
|
|
|
506 /* Now add the full submenu path as a value to the hash table,
|
|
|
507 keyed by menu handle */
|
|
|
508 if (NILP(path))
|
|
|
509 path = list1 (subname);
|
|
|
510 else {
|
|
|
511 Lisp_Object arg[2];
|
|
|
512 arg[0] = path;
|
|
|
513 arg[1] = list1 (subname);
|
|
|
514 GCPRO1 (arg[1]);
|
|
|
515 path = Fappend (2, arg);
|
|
|
516 UNGCPRO; /* arg[1] */
|
|
|
517 }
|
|
|
518
|
|
|
519 GCPRO1 (path);
|
|
|
520 Fputhash (hmenu_to_lisp_object (submenu), path, hash_tab);
|
|
|
521 UNGCPRO; /* path */
|
|
|
522 }
|
|
|
523 }
|
|
|
524 else if (VECTORP (item))
|
|
|
525 {
|
|
|
526 /* An ordinary item */
|
|
|
527 Lisp_Object plist, name, callback, style, id;
|
|
|
528
|
|
|
529 gui_parse_button_descriptor (item, &name, &callback, &plist);
|
|
|
530 GCPRO2 (plist, callback);
|
|
|
531
|
|
|
532 if (gui_plist_says_item_excluded (plist, Vmenubar_configuration))
|
|
|
533 return;
|
|
|
534
|
|
|
535 if (gui_plist_says_item_inactive (plist))
|
|
|
536 item_info.fState |= MFS_GRAYED;
|
|
|
537
|
|
|
538 style = gui_plist_get_current_style (plist);
|
|
|
539 if (EQ (style, Qradio))
|
|
|
540 {
|
|
|
541 item_info.fType |= MFT_RADIOCHECK;
|
|
|
542 item_info.fState |= MFS_CHECKED;
|
|
|
543 }
|
|
|
544 else if (EQ (style, Qtoggle))
|
|
|
545 {
|
|
|
546 item_info.fState |= MFS_CHECKED;
|
|
|
547 }
|
|
|
548
|
|
|
549 id = allocate_menu_item_id (path, name);
|
|
|
550 Fputhash (id, callback, hash_tab);
|
|
|
551
|
|
|
552 UNGCPRO; /* plist, callback */
|
|
|
553
|
|
|
554 item_info.wID = (UINT) XINT(id);
|
|
|
555 item_info.fType |= MFT_STRING;
|
|
|
556 item_info.dwTypeData = plist_get_menu_item_name (name, callback, plist);
|
|
|
557 }
|
|
|
558 else
|
|
|
559 {
|
|
|
560 signal_simple_error ("ill-constructed menu descriptor", item);
|
|
|
561 }
|
|
|
562
|
|
|
563 if (flush_right)
|
|
|
564 item_info.fType |= MFT_RIGHTJUSTIFY;
|
|
|
565
|
|
|
566 InsertMenuItem (menu, UINT_MAX, TRUE, &item_info);
|
|
|
567 }
|
|
|
568
|
|
|
569 static void
|
|
|
570 populate_menu (HMENU menu, Lisp_Object path, Lisp_Object descriptor,
|
|
|
571 Lisp_Object hash_tab, int bar_p)
|
|
|
572 {
|
|
|
573 Lisp_Object menu_name, plist, item_desc;
|
|
|
574 int deep_p, flush_right;
|
|
|
575 struct gcpro gcpro1;
|
|
|
576
|
|
|
577 /* Will initially contain only "(empty)" */
|
|
|
578 empty_menu (menu, 1);
|
|
|
579
|
|
|
580 /* PATH set to nil indicates top-level popup or menubar */
|
|
|
581 deep_p = !NILP (path);
|
|
|
582
|
|
|
583 if (!deep_p)
|
|
|
584 top_level_menu = menu;
|
|
|
585
|
|
|
586 if (!CONSP(descriptor))
|
|
|
587 signal_simple_error ("menu descriptor must be a list", descriptor);
|
|
|
588
|
|
|
589 if (STRINGP (XCAR (descriptor)))
|
|
|
590 {
|
|
|
591 menu_name = XCAR (descriptor);
|
|
|
592 descriptor = XCDR (descriptor);
|
|
|
593 }
|
|
|
594 else
|
|
|
595 {
|
|
|
596 menu_name = Qnil;
|
|
|
597 if (deep_p) /* Not a popup or bar */
|
|
|
598 signal_simple_error ("menu must have a name", descriptor);
|
|
|
599 }
|
|
|
600
|
|
|
601 /* Fetch keywords prepending the item list */
|
|
|
602 descriptor = gui_parse_menu_keywords (descriptor, &plist);
|
|
|
603 GCPRO1 (plist);
|
|
|
604 descriptor = gui_plist_apply_filter (plist, descriptor);
|
|
|
605 UNGCPRO; /* plist */
|
|
|
606
|
|
|
607 /* Loop thru the descriptor's CDR and add items for each entry */
|
|
|
608 flush_right = 0;
|
|
|
609 EXTERNAL_LIST_LOOP (item_desc, descriptor)
|
|
|
610 {
|
|
|
611 if (NILP (XCAR (item_desc)))
|
|
|
612 {
|
|
|
613 if (bar_p)
|
|
|
614 flush_right = 1;
|
|
|
615 }
|
|
|
616 else
|
|
|
617 populate_menu_add_item (menu, path, hash_tab,
|
|
|
618 XCAR (item_desc), flush_right);
|
|
|
619 }
|
|
|
620
|
|
|
621 /* Remove the "(empty)" item, if there are other ones */
|
|
|
622 if (GetMenuItemCount (menu) > 1)
|
|
|
623 RemoveMenu (menu, EMPTY_ITEM_ID, MF_BYCOMMAND);
|
|
|
624
|
|
|
625 /* Add the header to the popup, if told so. The same as in X - an
|
|
|
626 insensitive item, and a separator (Seems to me, there were
|
|
|
627 two separators in X... In Windows this looks ugly, anywats. */
|
|
|
628 if (!bar_p && !deep_p && popup_menu_titles && !NILP(menu_name))
|
|
|
629 {
|
|
|
630 InsertMenu (menu, 0, MF_BYPOSITION | MF_STRING | MF_DISABLED,
|
|
|
631 0, XSTRING_DATA(menu_name));
|
|
|
632 InsertMenu (menu, 1, MF_BYPOSITION | MF_SEPARATOR, 0, NULL);
|
|
|
633 SetMenuDefaultItem (menu, 0, MF_BYPOSITION);
|
|
|
634 }
|
|
|
635 }
|
|
|
636
|
|
|
637 static Lisp_Object
|
|
|
638 find_menu (Lisp_Object desc, Lisp_Object path)
|
|
|
639 {
|
|
|
640 /* #### find-menu-item is not what's required here.
|
|
|
641 Need to write this in C, or improve lisp */
|
|
|
642 if (!NILP (path))
|
|
|
643 {
|
|
|
644 desc = call2 (Qfind_menu_item, desc, path);
|
|
|
645 /* desc is (supposed to be) (ITEM . PARENT). Supposed
|
|
|
646 to signal but sometimes manages to return nil */
|
|
|
647 if (!NILP(desc))
|
|
|
648 {
|
|
|
649 CHECK_CONS (desc);
|
|
|
650 desc = XCAR (desc);
|
|
|
651 }
|
|
|
652 }
|
|
|
653 return desc;
|
|
|
654 }
|
|
|
655
|
|
|
656 static void
|
|
|
657 update_frame_menubar_maybe (struct frame* f)
|
|
|
658 {
|
|
|
659 HMENU menubar = GetMenu (FRAME_MSWINDOWS_HANDLE (f));
|
|
|
660 struct window *w = XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f));
|
|
|
661 Lisp_Object desc = (!NILP (w->menubar_visible_p)
|
|
|
662 ? symbol_value_in_buffer (Qcurrent_menubar, w->buffer)
|
|
|
663 : Qnil);
|
|
|
664
|
|
|
665 if (NILP (desc) && menubar != NULL)
|
|
|
666 {
|
|
|
667 /* Menubar has gone */
|
|
|
668 FRAME_MSWINDOWS_MENU_HASHTABLE(f) = Qnil;
|
|
|
669 DestroyMenu (menubar);
|
|
|
670 DrawMenuBar (FRAME_MSWINDOWS_HANDLE (f));
|
|
|
671 return;
|
|
|
672 }
|
|
|
673
|
|
|
674 if (!NILP (desc) && menubar == NULL)
|
|
|
675 {
|
|
|
676 /* Menubar has appeared */
|
|
|
677 menubar = CreateMenu ();
|
|
|
678 goto populate;
|
|
|
679 }
|
|
|
680
|
|
|
681 if (NILP (desc))
|
|
|
682 {
|
|
|
683 /* We did not have the bar and are not going to */
|
|
|
684 return;
|
|
|
685 }
|
|
|
686
|
|
|
687 /* Now we have to check if the menubar has really changed */
|
|
|
688 /* #### For now we do not though */
|
|
|
689
|
|
|
690 /* We cannot re-create the menu, cause WM_INITMENU does not like that.
|
|
|
691 We'll clear it instead. */
|
|
|
692 empty_menu (menubar, 0);
|
|
|
693
|
|
|
694 populate:
|
|
|
695 /* Come with empty hash table */
|
|
|
696 if (NILP (FRAME_MSWINDOWS_MENU_HASHTABLE(f)))
|
|
|
697 FRAME_MSWINDOWS_MENU_HASHTABLE(f) = Fmake_hashtable (make_int (50), Qequal);
|
|
|
698 else
|
|
|
699 Fclrhash (FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
700
|
|
|
701 Fputhash (hmenu_to_lisp_object (menubar), Qnil,
|
|
|
702 FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
703 populate_menu (menubar, Qnil, desc,
|
|
|
704 FRAME_MSWINDOWS_MENU_HASHTABLE(f), 1);
|
|
|
705 SetMenu (FRAME_MSWINDOWS_HANDLE (f), menubar);
|
|
|
706 DrawMenuBar (FRAME_MSWINDOWS_HANDLE (f));
|
|
|
707 }
|
|
|
708
|
|
|
709 static void
|
|
|
710 prune_menubar (struct frame *f)
|
|
|
711 {
|
|
|
712 HMENU menubar = GetMenu (FRAME_MSWINDOWS_HANDLE (f));
|
|
|
713 Lisp_Object desc = current_frame_menubar (f);
|
|
|
714 if (menubar == NULL)
|
|
|
715 return;
|
|
|
716
|
|
|
717 /* #### If a filter function has set desc to Qnil, this abort()
|
|
|
718 triggers. To resolve, we must prevent explicitely filters from
|
|
|
719 mangling with te active menu. In apply_filter probably?
|
|
|
720 Is copy-tree on the whole menu too expensive? */
|
|
|
721 if (NILP(desc))
|
|
|
722 /* abort(); */
|
|
|
723 return;
|
|
|
724
|
|
|
725 /* We do the trick by removing all items and re-populating top level */
|
|
|
726 empty_menu (menubar, 0);
|
|
|
727
|
|
|
728 assert (HASHTABLEP (FRAME_MSWINDOWS_MENU_HASHTABLE(f)));
|
|
|
729 Fclrhash (FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
730
|
|
|
731 Fputhash (hmenu_to_lisp_object (menubar), Qnil,
|
|
|
732 FRAME_MSWINDOWS_MENU_HASHTABLE(f));
|
|
|
733 populate_menu (menubar, Qnil, desc,
|
|
|
734 FRAME_MSWINDOWS_MENU_HASHTABLE(f), 1);
|
|
|
735 }
|
|
|
736
|
|
|
737 /*
|
|
|
738 * This is called when cleanup is possible. It is better not to
|
|
|
739 * clean things up at all than do it too earaly!
|
|
|
740 */
|
|
|
741 static void
|
|
|
742 menu_cleanup (struct frame *f)
|
|
|
743 {
|
|
|
744 /* This function can GC */
|
|
|
745 if (!NILP (current_tracking_popup))
|
|
|
746 {
|
|
|
747 current_tracking_popup = Qnil;
|
|
|
748 current_popup_hash_table = Qnil;
|
|
|
749 }
|
|
|
750 else
|
|
|
751 prune_menubar (f);
|
|
|
752 }
|
|
|
753
|
|
|
754
|
|
|
755 /*------------------------------------------------------------------------*/
|
|
|
756 /* Message handlers */
|
|
|
757 /*------------------------------------------------------------------------*/
|
|
|
758 static Lisp_Object
|
|
|
759 unsafe_handle_wm_initmenupopup_1 (HMENU menu, struct frame* f)
|
|
|
760 {
|
|
|
761 /* This function can call lisp, beat dogs and stick chewing gum to
|
|
|
762 everything! */
|
|
|
763
|
|
|
764 Lisp_Object path, desc, hash_tab;
|
|
|
765 struct gcpro gcpro1;
|
|
|
766
|
|
|
767 if (!NILP (current_tracking_popup))
|
|
|
768 {
|
|
|
769 desc = current_tracking_popup;
|
|
|
770 hash_tab = current_popup_hash_table;
|
|
|
771 }
|
|
|
772 else
|
|
|
773 {
|
|
|
774 desc = current_frame_menubar (f);
|
|
|
775 hash_tab = FRAME_MSWINDOWS_MENU_HASHTABLE(f);
|
|
|
776 }
|
|
|
777
|
|
|
778 /* Find which guy is going to explode */
|
|
|
779 path = Fgethash (hmenu_to_lisp_object (menu), hash_tab, Qunbound);
|
|
|
780 assert (!UNBOUNDP (path));
|
|
|
781
|
|
|
782 /* Now find a desc chunk for it. If none, then probably menu open
|
|
|
783 hook has played too much games around stuff */
|
|
|
784 if (!NILP (path))
|
|
|
785 {
|
|
|
786 desc = find_menu (desc, path);
|
|
|
787 if (NILP (desc))
|
|
|
788 signal_simple_error ("this menu does not exist any more", path);
|
|
|
789 }
|
|
|
790
|
|
|
791 /* Now, stuff it */
|
|
|
792 /* DESC may be generated by filter, so we have to gcpro it */
|
|
|
793 GCPRO1 (desc);
|
|
|
794 populate_menu (menu, path, desc, hash_tab, 0);
|
|
|
795 UNGCPRO;
|
|
|
796 return Qt;
|
|
|
797 }
|
|
|
798
|
|
|
799 static Lisp_Object
|
|
|
800 unsafe_handle_wm_initmenu_1 (struct frame* f)
|
|
|
801 {
|
|
|
802 /* This function can call lisp */
|
|
|
803 /* #### - this menubar update mechanism is expensively anti-social and
|
|
|
804 the activate-menubar-hook is now mostly obsolete. */
|
|
|
805
|
|
|
806 /* We simply ignore return value. In any case, we construct the bar
|
|
|
807 on the fly */
|
|
|
808 run_hook (Vactivate_menubar_hook);
|
|
|
809
|
|
|
810 update_frame_menubar_maybe (f);
|
|
|
811 return Qt;
|
|
|
812 }
|
|
|
813
|
|
|
814
|
|
|
815 #ifdef KKM_DOES_NOT_LIKE_UNDOCS_SOMETIMES
|
|
|
816
|
|
|
817 /* #### This may become wrong in future Windows */
|
|
|
818
|
|
|
819 static Lisp_Object
|
|
|
820 unsafe_handle_wm_exitmenuloop_1 (struct frame* f)
|
|
|
821 {
|
|
|
822 if (!NILP (current_tracking_popup))
|
|
|
823 prune_menubar (f);
|
|
|
824 return Qt;
|
|
|
825 }
|
|
|
826
|
|
|
827 #endif
|
|
|
828
|
|
|
829 /*
|
|
|
830 * Return value is Qt if we have dispatched the command,
|
|
|
831 * or Qnil if id has not been mapped to a callback.
|
|
|
832 * Window procedure may try other targets to route the
|
|
|
833 * command if we return nil
|
|
|
834 */
|
|
|
835 Lisp_Object
|
|
|
836 mswindows_handle_wm_command (struct frame* f, WORD id)
|
|
|
837 {
|
|
|
838 /* Try to map the command id through the proper hash table */
|
|
|
839 Lisp_Object hash_tab, command, funcsym, frame;
|
|
|
840 struct gcpro gcpro1;
|
|
|
841
|
|
|
842 if (!NILP (current_tracking_popup))
|
|
|
843 hash_tab = current_popup_hash_table;
|
|
|
844 else
|
|
|
845 hash_tab = FRAME_MSWINDOWS_MENU_HASHTABLE(f);
|
|
|
846
|
|
|
847 command = Fgethash (make_int (id), hash_tab, Qunbound);
|
|
|
848 if (UNBOUNDP (command))
|
|
|
849 {
|
|
|
850 menu_cleanup (f);
|
|
|
851 return Qnil;
|
|
|
852 }
|
|
|
853
|
|
|
854 /* Need to gcpro because the hashtable may get destroyed
|
|
|
855 by menu_cleanup(), and will not gcpro the command
|
|
|
856 any more */
|
|
|
857 GCPRO1 (command);
|
|
|
858 menu_cleanup (f);
|
|
|
859
|
|
|
860 /* Ok, this is our one. Enqueue it. */
|
|
|
861 #if 0
|
|
|
862 if (SYMBOLP (command))
|
|
|
863 Fcall_interactively (command, Qnil, Qnil);
|
|
|
864 else if (CONSP (command))
|
|
|
865 Feval (command);
|
|
|
866 else
|
|
|
867 signal_simple_error ("illegal callback", command);
|
|
|
868 #endif
|
|
|
869 if (SYMBOLP (command))
|
|
|
870 funcsym = Qcall_interactively;
|
|
|
871 else if (CONSP (command))
|
|
|
872 funcsym = Qeval;
|
|
|
873 else
|
|
|
874 signal_simple_error ("illegal callback", command);
|
|
|
875
|
|
|
876 XSETFRAME (frame, f);
|
|
|
877 enqueue_misc_user_event (frame, funcsym, command);
|
|
|
878
|
|
|
879 UNGCPRO; /* command */
|
|
|
880 return Qt;
|
|
|
881 }
|
|
|
882
|
|
|
883
|
|
|
884 /*------------------------------------------------------------------------*/
|
|
|
885 /* Message handling proxies */
|
|
|
886 /*------------------------------------------------------------------------*/
|
|
|
887
|
|
|
888 static HMENU wm_initmenu_menu;
|
|
|
889 static struct frame* wm_initmenu_frame;
|
|
|
890
|
|
|
891 static Lisp_Object
|
|
|
892 unsafe_handle_wm_initmenupopup (Lisp_Object u_n_u_s_e_d)
|
|
|
893 {
|
|
|
894 return unsafe_handle_wm_initmenupopup_1 (wm_initmenu_menu, wm_initmenu_frame);
|
|
|
895 }
|
|
|
896
|
|
|
897 static Lisp_Object
|
|
|
898 unsafe_handle_wm_initmenu (Lisp_Object u_n_u_s_e_d)
|
|
|
899 {
|
|
|
900 return unsafe_handle_wm_initmenu_1 (wm_initmenu_frame);
|
|
|
901 }
|
|
|
902
|
|
|
903 #ifdef KKM_DOES_NOT_LIKE_UNDOCS_SOMETIMES
|
|
|
904 static Lisp_Object
|
|
|
905 unsafe_handle_wm_exitmenuloop (Lisp_Object u_n_u_s_e_d)
|
|
|
906 {
|
|
|
907 return unsafe_handle_wm_exitmenuloop_1 (wm_initmenu_frame);
|
|
|
908 }
|
|
|
909 #endif
|
|
|
910
|
|
|
911 Lisp_Object
|
|
|
912 mswindows_handle_wm_initmenupopup (HMENU hmenu, struct frame* frm)
|
|
|
913 {
|
|
|
914 /* We cannot pass hmenu as a lisp object. Use static var */
|
|
|
915 wm_initmenu_menu = hmenu;
|
|
|
916 wm_initmenu_frame = frm;
|
|
|
917 return mswindows_protect_modal_loop (unsafe_handle_wm_initmenupopup, Qnil);
|
|
|
918 }
|
|
|
919
|
|
|
920 Lisp_Object
|
|
|
921 mswindows_handle_wm_initmenu (struct frame* f)
|
|
|
922 {
|
|
|
923 wm_initmenu_frame = f;
|
|
|
924 return mswindows_protect_modal_loop (unsafe_handle_wm_initmenu, Qnil);
|
|
|
925 }
|
|
|
926
|
|
|
927 Lisp_Object
|
|
|
928 mswindows_handle_wm_exitmenuloop (struct frame* f)
|
|
|
929 {
|
|
|
930 #ifdef KKM_DOES_NOT_LIKE_UNDOCS_SOMETIMES
|
|
|
931 wm_initmenu_frame = f;
|
|
|
932 return mswindows_protect_modal_loop (unsafe_handle_wm_exitmenuloop, Qnil);
|
|
|
933 #else
|
|
|
934 return Qt;
|
|
|
935 #endif
|
|
|
936 }
|
|
|
937
|
|
|
938
|
|
|
939 /*------------------------------------------------------------------------*/
|
|
|
940 /* Methods */
|
|
|
941 /*------------------------------------------------------------------------*/
|
|
|
942
|
|
|
943 static void
|
|
|
944 mswindows_update_frame_menubars (struct frame* f)
|
|
|
945 {
|
|
|
946 update_frame_menubar_maybe (f);
|
|
|
947 }
|
|
|
948
|
|
|
949 static void
|
|
|
950 mswindows_free_frame_menubars (struct frame* f)
|
|
|
951 {
|
|
|
952 FRAME_MSWINDOWS_MENU_HASHTABLE(f) = Qnil;
|
|
|
953 }
|
|
|
954
|
|
|
955 static void
|
|
|
956 mswindows_popup_menu (Lisp_Object menu_desc, Lisp_Object event)
|
|
|
957 {
|
|
|
958 struct frame *f = selected_frame ();
|
|
|
959 struct Lisp_Event *eev = NULL;
|
|
|
960 HMENU menu;
|
|
|
961 POINT pt;
|
|
|
962 int ok;
|
|
|
963
|
|
|
964 if (!NILP (event))
|
|
|
965 {
|
|
|
966 CHECK_LIVE_EVENT (event);
|
|
|
967 eev = XEVENT (event);
|
|
|
968 if (eev->event_type != button_press_event
|
|
|
969 && eev->event_type != button_release_event)
|
|
|
970 wrong_type_argument (Qmouse_event_p, event);
|
|
|
971 }
|
|
|
972 else if (!NILP (Vthis_command_keys))
|
|
|
973 {
|
|
|
974 /* if an event wasn't passed, use the last event of the event sequence
|
|
|
975 currently being executed, if that event is a mouse event */
|
|
|
976 eev = XEVENT (Vthis_command_keys); /* last event first */
|
|
|
977 if (eev->event_type != button_press_event
|
|
|
978 && eev->event_type != button_release_event)
|
|
|
979 eev = NULL;
|
|
|
980 }
|
|
|
981
|
|
|
982 /* Default is to put the menu at the point (10, 10) in frame */
|
|
|
983 if (eev)
|
|
|
984 {
|
|
|
985 pt.x = eev->event.button.x;
|
|
|
986 pt.y = eev->event.button.y;
|
|
|
987 ClientToScreen (FRAME_MSWINDOWS_HANDLE (f), &pt);
|
|
|
988 }
|
|
|
989 else
|
|
|
990 pt.x = pt.y = 10;
|
|
|
991
|
|
|
992 if (SYMBOLP (menu_desc))
|
|
|
993 menu_desc = Fsymbol_value (menu_desc);
|
|
|
994
|
|
|
995 current_tracking_popup = menu_desc;
|
|
|
996 current_popup_hash_table = Fmake_hashtable (make_int(10), Qequal);
|
|
|
997 menu = create_empty_popup_menu();
|
|
|
998 Fputhash (hmenu_to_lisp_object (menu), Qnil, current_popup_hash_table);
|
|
|
999
|
|
|
1000 ok = TrackPopupMenu (menu, TPM_LEFTALIGN | TPM_LEFTBUTTON,
|
|
|
1001 pt.x, pt.y, 0,
|
|
|
1002 FRAME_MSWINDOWS_HANDLE (f), NULL);
|
|
|
1003
|
|
|
1004 DestroyMenu (menu);
|
|
|
1005
|
|
|
1006 /* Signal a signal if caught by Track...() modal loop */
|
|
|
1007 mswindows_unmodalize_signal_maybe ();
|
|
|
1008
|
|
|
1009 /* This is probably the only real reason for failure */
|
|
|
1010 if (!ok) {
|
|
|
1011 menu_cleanup (f);
|
|
|
1012 signal_simple_error ("cannot track popup menu while in menu",
|
|
|
1013 menu_desc);
|
|
|
1014 }
|
|
|
1015 }
|
|
|
1016
|
|
|
1017
|
|
|
1018 /*------------------------------------------------------------------------*/
|
|
|
1019 /* Initialization */
|
|
|
1020 /*------------------------------------------------------------------------*/
|
|
|
1021 void
|
|
|
1022 syms_of_menubar_mswindows (void)
|
|
|
1023 {
|
|
|
1024 defsymbol (&Qfind_menu_item, "find-menu-item");
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 void
|
|
|
1028 console_type_create_menubar_mswindows (void)
|
|
|
1029 {
|
|
|
1030 CONSOLE_HAS_METHOD (mswindows, update_frame_menubars);
|
|
|
1031 CONSOLE_HAS_METHOD (mswindows, free_frame_menubars);
|
|
|
1032 CONSOLE_HAS_METHOD (mswindows, popup_menu);
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 void
|
|
|
1036 vars_of_menubar_mswindows (void)
|
|
|
1037 {
|
|
|
1038 current_tracking_popup = Qnil;
|
|
|
1039 current_popup_hash_table = Qnil;
|
|
|
1040
|
|
|
1041 staticpro (¤t_tracking_popup);
|
|
|
1042 staticpro (¤t_popup_hash_table);
|
|
|
1043
|
|
|
1044 Fprovide (intern ("mswindows-menubars"));
|
|
|
1045 }
|
