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0
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1 /* Implements an elisp-programmable menubar -- X interface.
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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
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not in FSF. */
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23
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24 /* created 16-dec-91 by jwz */
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25
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26 #include <config.h>
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27 #include "lisp.h"
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28
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29 #include "console-x.h"
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30 #include "EmacsManager.h"
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31 #include "EmacsFrame.h"
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32 #include "EmacsShell.h"
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33 #include "gui-x.h"
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34
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35 #include "buffer.h"
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36 #include "commands.h" /* zmacs_regions */
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231
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37 #include "gui.h"
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0
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38 #include "events.h"
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39 #include "frame.h"
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40 #include "opaque.h"
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41 #include "window.h"
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42
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43 static int set_frame_menubar (struct frame *f,
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44 int deep_p,
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45 int first_time_p);
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46
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47 #define FRAME_MENUBAR_DATA(frame) ((frame)->menubar_data)
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48 #define XFRAME_MENUBAR_DATA(frame) XPOPUP_DATA ((frame)->menubar_data)
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49
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50 #define MENUBAR_TYPE 0
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51 #define SUBMENU_TYPE 1
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52 #define POPUP_TYPE 2
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53
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54
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55 /* Converting Lisp menu tree descriptions to lwlib's `widget_value' form.
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56
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57 menu_item_descriptor_to_widget_value() converts a lisp description of a
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58 menubar into a tree of widget_value structures. It allocates widget_values
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59 with malloc_widget_value() and allocates other storage only for the `key'
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60 slot. All other slots are filled with pointers to Lisp_String data. We
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61 allocate a widget_value description of the menu or menubar, and hand it to
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62 lwlib, which then makes a copy of it, which it manages internally. We then
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63 immediately free our widget_value tree; it will not be referenced again.
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64
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65 Incremental menu construction callbacks operate just a bit differently.
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66 They allocate widget_values and call replace_widget_value_tree() to tell
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67 lwlib to destructively modify the incremental stub (subtree) of its
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68 separate widget_value tree.
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69
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70 This function is highly recursive (it follows the menu trees) and may call
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71 eval. The reason we keep pointers to lisp string data instead of copying
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72 it and freeing it later is to avoid the speed penalty that would entail
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73 (since this needs to be fast, in the simple cases at least). (The reason
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74 we malloc/free the keys slot is because there's not a lisp string around
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75 for us to use in that case.)
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76
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77 Since we keep pointers to lisp strings, and we call eval, we could lose if
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78 GC relocates (or frees) those strings. It's not easy to gc protect the
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79 strings because of the recursive nature of this function, and the fact that
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80 it returns a data structure that gets freed later. So... we do the
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81 sleaziest thing possible and inhibit GC for the duration. This is probably
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82 not a big deal...
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83
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84 We do not have to worry about the pointers to Lisp_String data after
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85 this function successfully finishes. lwlib copies all such data with
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16
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86 strdup(). */
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0
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87
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88 static widget_value *
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185
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89 menu_item_descriptor_to_widget_value_1 (Lisp_Object desc,
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0
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90 int menu_type, int deep_p,
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91 int filter_p,
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92 int depth)
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93 {
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94 /* This function cannot GC.
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95 It is only called from menu_item_descriptor_to_widget_value, which
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96 prohibits GC. */
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97 /* !!#### This function has not been Mule-ized */
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98 int menubar_root_p = (menu_type == MENUBAR_TYPE && depth == 0);
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99 widget_value *wv;
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100 Lisp_Object wv_closure;
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101 int count = specpdl_depth ();
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102 int partition_seen = 0;
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103
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104 wv = xmalloc_widget_value ();
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105
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106 wv_closure = make_opaque_ptr (wv);
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107 record_unwind_protect (widget_value_unwind, wv_closure);
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108
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109 if (STRINGP (desc))
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110 {
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16
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111 char *string_chars = (char *) XSTRING_DATA (desc);
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0
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112 wv->type = (separator_string_p (string_chars) ? SEPARATOR_TYPE :
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113 TEXT_TYPE);
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114 #if 1
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115 /* #### - should internationalize with X resources instead.
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116 Not so! --ben */
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117 string_chars = GETTEXT (string_chars);
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118 #endif
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119 if (wv->type == SEPARATOR_TYPE)
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120 {
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121 wv->value = menu_separator_style (string_chars);
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185
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122 }
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0
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123 else
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124 {
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125 wv->name = string_chars;
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126 wv->enabled = 1;
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127 }
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128 }
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129 else if (VECTORP (desc))
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130 {
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131 if (!button_item_to_widget_value (desc, wv, 1,
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132 (menu_type == MENUBAR_TYPE
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133 && depth <= 1)))
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134 {
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135 /* :included form was nil */
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136 wv = NULL;
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137 goto menu_item_done;
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138 }
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139 }
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140 else if (CONSP (desc))
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141 {
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142 Lisp_Object incremental_data = desc;
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143 widget_value *prev = 0;
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144
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145 if (STRINGP (XCAR (desc)))
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146 {
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147 Lisp_Object key, val;
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173
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148 Lisp_Object include_p = Qnil, hook_fn = Qnil, config_tag = Qnil;
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175
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149 Lisp_Object accel;
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0
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150 int included_spec = 0;
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151 wv->type = CASCADE_TYPE;
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152 wv->enabled = 1;
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16
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153 wv->name = (char *) XSTRING_DATA (LISP_GETTEXT (XCAR (desc)));
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175
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154
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155 accel = menu_name_to_accelerator (wv->name);
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156 wv->accel = LISP_TO_VOID (accel);
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157
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0
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158 desc = Fcdr (desc);
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159
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160 while (key = Fcar (desc), KEYWORDP (key))
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161 {
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162 Lisp_Object cascade = desc;
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163 desc = Fcdr (desc);
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164 if (NILP (desc))
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165 signal_simple_error ("keyword in menu lacks a value",
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185
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166 cascade);
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0
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167 val = Fcar (desc);
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168 desc = Fcdr (desc);
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169 if (EQ (key, Q_included))
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170 include_p = val, included_spec = 1;
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171 else if (EQ (key, Q_config))
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172 config_tag = val;
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173 else if (EQ (key, Q_filter))
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174 hook_fn = val;
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175
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175 else if (EQ (key, Q_accelerator))
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176 {
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177 if ( SYMBOLP (val)
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178 || CHARP (val))
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179 wv->accel = LISP_TO_VOID (val);
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180 else
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181 signal_simple_error ("bad keyboard accelerator", val);
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182 }
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185
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183 else
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0
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184 signal_simple_error ("unknown menu cascade keyword", cascade);
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185 }
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186
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187 if ((!NILP (config_tag)
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188 && NILP (Fmemq (config_tag, Vmenubar_configuration)))
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189 || (included_spec && NILP (Feval (include_p))))
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190 {
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191 wv = NULL;
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192 goto menu_item_done;
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193 }
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194 if (!NILP (hook_fn))
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195 {
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219
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196 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
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0
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197 if (filter_p || depth == 0)
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198 {
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185
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199 #endif
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0
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200 desc = call1_trapping_errors ("Error in menubar filter",
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201 hook_fn, desc);
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202 if (UNBOUNDP (desc))
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203 desc = Qnil;
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219
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204 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
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0
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205 }
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206 else
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207 {
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208 widget_value *incr_wv = xmalloc_widget_value ();
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209 wv->contents = incr_wv;
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210 incr_wv->type = INCREMENTAL_TYPE;
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211 incr_wv->enabled = 1;
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212 incr_wv->name = wv->name;
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213 /* This is automatically GC protected through
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214 the call to lw_map_widget_values(); no need
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215 to worry. */
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216 incr_wv->call_data = LISP_TO_VOID (incremental_data);
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217 goto menu_item_done;
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218 }
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243
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219 #endif /* LWLIB_MENUBARS_LUCID || LWLIB_MENUBARS_MOTIF */
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0
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220 }
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221 if (menu_type == POPUP_TYPE && popup_menu_titles && depth == 0)
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222 {
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223 /* Simply prepend three more widget values to the contents of
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224 the menu: a label, and two separators (to get a double
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225 line). */
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226 widget_value *title_wv = xmalloc_widget_value ();
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227 widget_value *sep_wv = xmalloc_widget_value ();
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228 title_wv->type = TEXT_TYPE;
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229 title_wv->name = wv->name;
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230 title_wv->enabled = 1;
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231 title_wv->next = sep_wv;
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232 sep_wv->type = SEPARATOR_TYPE;
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233 sep_wv->value = menu_separator_style ("==");
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234 sep_wv->next = 0;
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185
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235
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0
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236 wv->contents = title_wv;
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237 prev = sep_wv;
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238 }
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239 }
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240 else if (menubar_root_p)
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241 {
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2
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242 wv->name = (char *) "menubar";
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0
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243 wv->type = CASCADE_TYPE; /* Well, nothing else seems to fit and
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244 this is ignored anyway... */
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245 }
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246 else
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247 {
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248 signal_simple_error ("menu name (first element) must be a string",
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249 desc);
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250 }
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251
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252 wv->enabled = 1;
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253 if (deep_p || menubar_root_p)
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254 {
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255 widget_value *next;
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256 for (; !NILP (desc); desc = Fcdr (desc))
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257 {
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258 Lisp_Object child = Fcar (desc);
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259 if (menubar_root_p && NILP (child)) /* the partition */
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260 {
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261 if (partition_seen)
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262 error (
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263 "more than one partition (nil) in menubar description");
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264 partition_seen = 1;
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265 next = xmalloc_widget_value ();
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266 next->type = PUSHRIGHT_TYPE;
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267 }
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268 else
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269 {
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16
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270 next = menu_item_descriptor_to_widget_value_1
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271 (child, menu_type, deep_p, filter_p, depth + 1);
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0
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272 }
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273 if (! next)
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274 continue;
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275 else if (prev)
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276 prev->next = next;
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277 else
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278 wv->contents = next;
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279 prev = next;
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280 }
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281 }
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282 if (deep_p && !wv->contents)
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283 wv = NULL;
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284 }
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285 else if (NILP (desc))
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286 error ("nil may not appear in menu descriptions");
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287 else
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288 signal_simple_error ("unrecognized menu descriptor", desc);
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289
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290 menu_item_done:
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291
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292 if (wv)
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293 {
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294 /* Completed normally. Clear out the object that widget_value_unwind()
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295 will be called with to tell it not to free the wv (as we are
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296 returning it.) */
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297 set_opaque_ptr (wv_closure, 0);
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298 }
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299
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300 unbind_to (count, Qnil);
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301 return wv;
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302 }
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303
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304 static widget_value *
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185
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305 menu_item_descriptor_to_widget_value (Lisp_Object desc,
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0
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306 int menu_type, /* if this is a menubar,
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307 popup or sub menu */
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308 int deep_p, /* */
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309 int filter_p) /* if :filter forms
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185
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310 should run now */
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0
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311 {
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312 widget_value *wv;
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313 int count = specpdl_depth ();
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314 record_unwind_protect (restore_gc_inhibit,
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315 make_int (gc_currently_forbidden));
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316 gc_currently_forbidden = 1;
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317 /* Can't GC! */
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318 wv = menu_item_descriptor_to_widget_value_1 (desc, menu_type, deep_p,
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319 filter_p, 0);
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320 unbind_to (count, Qnil);
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321 return wv;
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322 }
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323
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324
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219
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325 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
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138
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326 int in_menu_callback;
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327
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169
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328 static Lisp_Object
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329 restore_in_menu_callback (Lisp_Object val)
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138
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330 {
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331 in_menu_callback = XINT(val);
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332 return Qnil;
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333 }
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243
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334 #endif /* LWLIB_MENUBARS_LUCID || LWLIB_MENUBARS_MOTIF */
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138
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335
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314
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336 #if 0
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337 /* #### Sort of a hack needed to process Vactivate_menubar_hook
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338 correctly wrt buffer-local values. A correct solution would
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339 involve adding a callback mechanism to run_hook(). This function
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340 is currently unused. */
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341 static int
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342 my_run_hook (Lisp_Object hooksym, int allow_global_p)
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343 {
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344 /* This function can GC */
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345 Lisp_Object tail;
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346 Lisp_Object value = Fsymbol_value (hooksym);
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347 int changes = 0;
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348
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349 if (!NILP (value) && (!CONSP (value) || EQ (XCAR (value), Qlambda)))
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350 return !EQ (call0 (value), Qt);
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351
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352 EXTERNAL_LIST_LOOP (tail, value)
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353 {
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354 if (allow_global_p && EQ (XCAR (tail), Qt))
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355 changes |= my_run_hook (Fdefault_value (hooksym), 0);
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356 if (!EQ (call0 (XCAR (tail)), Qt))
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357 changes = 1;
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358 }
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359 return changes;
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360 }
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361 #endif
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362
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138
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363
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0
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364 /* The order in which callbacks are run is funny to say the least.
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365 It's sometimes tricky to avoid running a callback twice, and to
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366 avoid returning prematurely. So, this function returns true
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367 if the menu's callbacks are no longer gc protected. So long
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368 as we unprotect them before allowing other callbacks to run,
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369 everything should be ok.
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370
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371 The pre_activate_callback() *IS* intentionally called multiple times.
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372 If client_data == NULL, then it's being called before the menu is posted.
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373 If client_data != NULL, then client_data is a (widget_value *) and
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374 client_data->data is a Lisp_Object pointing to a lisp submenu description
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375 that must be converted into widget_values. *client_data is destructively
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185
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376 modified.
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0
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377
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378 #### Stig thinks that there may be a GC problem here due to the
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379 fact that pre_activate_callback() is called multiple times, but I
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380 think he's wrong.
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381
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382 */
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383
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384 static void
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385 pre_activate_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
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386 {
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387 /* This function can GC */
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388 struct device *d = get_device_from_display (XtDisplay (widget));
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389 struct frame *f = x_any_window_to_frame (d, XtWindow (widget));
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|
82
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390 Lisp_Object frame;
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138
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391 int count;
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0
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392
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175
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393 /* set in lwlib to the time stamp associated with the most recent menu
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394 operation */
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|
|
395 extern Time x_focus_timestamp_really_sucks_fix_me_better;
|
|
|
396
|
|
0
|
397 if (!f)
|
|
|
398 f = x_any_window_to_frame (d, XtWindow (XtParent (widget)));
|
|
|
399 if (!f)
|
|
|
400 return;
|
|
|
401
|
|
82
|
402 /* make sure f is the selected frame */
|
|
|
403 XSETFRAME (frame, f);
|
|
|
404 Fselect_frame (frame);
|
|
|
405
|
|
0
|
406 if (client_data)
|
|
|
407 {
|
|
|
408 /* this is an incremental menu construction callback */
|
|
|
409 widget_value *hack_wv = (widget_value *) client_data;
|
|
|
410 Lisp_Object submenu_desc;
|
|
|
411 widget_value *wv;
|
|
|
412
|
|
|
413 assert (hack_wv->type == INCREMENTAL_TYPE);
|
|
|
414 VOID_TO_LISP (submenu_desc, hack_wv->call_data);
|
|
138
|
415
|
|
|
416 /*
|
|
|
417 * #### Fix the menu code so this isn't necessary.
|
|
|
418 *
|
|
|
419 * Protect against reentering the menu code otherwise we will
|
|
|
420 * crash later when the code gets confused at the state
|
|
|
421 * changes.
|
|
|
422 */
|
|
|
423 count = specpdl_depth ();
|
|
|
424 record_unwind_protect (restore_in_menu_callback,
|
|
|
425 make_int (in_menu_callback));
|
|
|
426 in_menu_callback = 1;
|
|
0
|
427 wv = menu_item_descriptor_to_widget_value (submenu_desc, SUBMENU_TYPE,
|
|
114
|
428 1, 0);
|
|
138
|
429 unbind_to (count, Qnil);
|
|
|
430
|
|
0
|
431 if (!wv)
|
|
|
432 {
|
|
|
433 wv = xmalloc_widget_value ();
|
|
|
434 wv->type = CASCADE_TYPE;
|
|
|
435 wv->next = NULL;
|
|
|
436 wv->contents = xmalloc_widget_value ();
|
|
|
437 wv->contents->type = TEXT_TYPE;
|
|
2
|
438 wv->contents->name = (char *) "No menu";
|
|
0
|
439 wv->contents->next = NULL;
|
|
|
440 }
|
|
|
441 assert (wv && wv->type == CASCADE_TYPE && wv->contents);
|
|
|
442 replace_widget_value_tree (hack_wv, wv->contents);
|
|
|
443 free_popup_widget_value_tree (wv);
|
|
|
444 }
|
|
314
|
445 else if (!POPUP_DATAP (FRAME_MENUBAR_DATA (f)))
|
|
|
446 return;
|
|
0
|
447 else
|
|
|
448 {
|
|
314
|
449 #if 0 /* Unused, see comment below. */
|
|
|
450 int any_changes;
|
|
|
451
|
|
0
|
452 /* #### - this menubar update mechanism is expensively anti-social and
|
|
|
453 the activate-menubar-hook is now mostly obsolete. */
|
|
314
|
454 any_changes = my_run_hook (Qactivate_menubar_hook, 1);
|
|
185
|
455
|
|
0
|
456 /* #### - It is necessary to *ALWAYS* call set_frame_menubar() now that
|
|
|
457 incremental menus are implemented. If a subtree of a menu has been
|
|
|
458 updated incrementally (a destructive operation), then that subtree
|
|
|
459 must somehow be wiped.
|
|
|
460
|
|
|
461 It is difficult to undo the destructive operation in lwlib because
|
|
|
462 a pointer back to lisp data needs to be hidden away somewhere. So
|
|
|
463 that an INCREMENTAL_TYPE widget_value can be recreated... Hmmmmm. */
|
|
|
464 if (any_changes ||
|
|
|
465 !XFRAME_MENUBAR_DATA (f)->menubar_contents_up_to_date)
|
|
314
|
466 set_frame_menubar (f, 1, 0);
|
|
|
467 #else
|
|
|
468 run_hook (Qactivate_menubar_hook);
|
|
|
469 set_frame_menubar (f, 1, 0);
|
|
185
|
470 #endif
|
|
175
|
471 DEVICE_X_MOUSE_TIMESTAMP (XDEVICE (FRAME_DEVICE (f))) =
|
|
|
472 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (XDEVICE (FRAME_DEVICE (f))) =
|
|
|
473 x_focus_timestamp_really_sucks_fix_me_better;
|
|
0
|
474 }
|
|
|
475 }
|
|
|
476
|
|
|
477 static widget_value *
|
|
|
478 compute_menubar_data (struct frame *f, Lisp_Object menubar, int deep_p)
|
|
|
479 {
|
|
|
480 widget_value *data;
|
|
|
481
|
|
|
482 if (NILP (menubar))
|
|
|
483 data = 0;
|
|
|
484 else
|
|
|
485 {
|
|
82
|
486 Lisp_Object old_buffer;
|
|
|
487 int count = specpdl_depth ();
|
|
|
488
|
|
|
489 old_buffer = Fcurrent_buffer ();
|
|
|
490 record_unwind_protect (Fset_buffer, old_buffer);
|
|
|
491 Fset_buffer ( XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer);
|
|
0
|
492 data = menu_item_descriptor_to_widget_value (menubar, MENUBAR_TYPE,
|
|
|
493 deep_p, 0);
|
|
82
|
494 Fset_buffer (old_buffer);
|
|
|
495 unbind_to (count, Qnil);
|
|
0
|
496 }
|
|
|
497 return data;
|
|
|
498 }
|
|
|
499
|
|
|
500 static int
|
|
|
501 set_frame_menubar (struct frame *f, int deep_p, int first_time_p)
|
|
|
502 {
|
|
|
503 widget_value *data;
|
|
|
504 Lisp_Object menubar;
|
|
|
505 int menubar_visible;
|
|
|
506 long id;
|
|
|
507 /* As for the toolbar, the minibuffer does not have its own menubar. */
|
|
|
508 struct window *w = XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f));
|
|
|
509
|
|
|
510 if (! FRAME_X_P (f))
|
|
|
511 return 0;
|
|
|
512
|
|
|
513 /***** first compute the contents of the menubar *****/
|
|
|
514
|
|
|
515 if (! first_time_p)
|
|
|
516 {
|
|
|
517 /* evaluate `current-menubar' in the buffer of the selected window
|
|
|
518 of the frame in question. */
|
|
|
519 menubar = symbol_value_in_buffer (Qcurrent_menubar, w->buffer);
|
|
|
520 }
|
|
|
521 else
|
|
|
522 {
|
|
|
523 /* That's a little tricky the first time since the frame isn't
|
|
|
524 fully initialized yet. */
|
|
|
525 menubar = Fsymbol_value (Qcurrent_menubar);
|
|
|
526 }
|
|
|
527
|
|
|
528 if (NILP (menubar))
|
|
|
529 {
|
|
|
530 menubar = Vblank_menubar;
|
|
|
531 menubar_visible = 0;
|
|
|
532 }
|
|
|
533 else
|
|
|
534 menubar_visible = !NILP (w->menubar_visible_p);
|
|
|
535
|
|
|
536 data = compute_menubar_data (f, menubar, deep_p);
|
|
|
537 if (!data || (!data->next && !data->contents))
|
|
|
538 abort ();
|
|
185
|
539
|
|
0
|
540 if (NILP (FRAME_MENUBAR_DATA (f)))
|
|
|
541 {
|
|
|
542 struct popup_data *mdata =
|
|
185
|
543 alloc_lcrecord_type (struct popup_data, lrecord_popup_data);
|
|
0
|
544
|
|
|
545 mdata->id = new_lwlib_id ();
|
|
|
546 mdata->last_menubar_buffer = Qnil;
|
|
|
547 mdata->menubar_contents_up_to_date = 0;
|
|
|
548 XSETPOPUP_DATA (FRAME_MENUBAR_DATA (f), mdata);
|
|
|
549 }
|
|
|
550
|
|
|
551 /***** now store into the menubar widget, creating it if necessary *****/
|
|
|
552
|
|
|
553 id = XFRAME_MENUBAR_DATA (f)->id;
|
|
|
554 if (!FRAME_X_MENUBAR_WIDGET (f))
|
|
|
555 {
|
|
|
556 Widget parent = FRAME_X_CONTAINER_WIDGET (f);
|
|
|
557
|
|
|
558 assert (first_time_p);
|
|
|
559
|
|
|
560 /* It's the first time we've mapped the menubar so compute its
|
|
|
561 contents completely once. This makes sure that the menubar
|
|
|
562 components are created with the right type. */
|
|
|
563 if (!deep_p)
|
|
|
564 {
|
|
|
565 free_popup_widget_value_tree (data);
|
|
|
566 data = compute_menubar_data (f, menubar, 1);
|
|
|
567 }
|
|
|
568
|
|
|
569
|
|
|
570 FRAME_X_MENUBAR_WIDGET (f) =
|
|
|
571 lw_create_widget ("menubar", "menubar", id, data, parent,
|
|
|
572 0, pre_activate_callback,
|
|
|
573 popup_selection_callback, 0);
|
|
|
574
|
|
|
575 }
|
|
|
576 else
|
|
|
577 {
|
|
|
578 lw_modify_all_widgets (id, data, deep_p ? True : False);
|
|
|
579 }
|
|
|
580 free_popup_widget_value_tree (data);
|
|
185
|
581
|
|
0
|
582 XFRAME_MENUBAR_DATA (f)->menubar_contents_up_to_date = deep_p;
|
|
|
583 XFRAME_MENUBAR_DATA (f)->last_menubar_buffer =
|
|
|
584 XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f))->buffer;
|
|
|
585 return menubar_visible;
|
|
|
586 }
|
|
|
587
|
|
|
588
|
|
|
589 /* Called from x_create_widgets() to create the inital menubar of a frame
|
|
|
590 before it is mapped, so that the window is mapped with the menubar already
|
|
|
591 there instead of us tacking it on later and thrashing the window after it
|
|
|
592 is visible. */
|
|
|
593 int
|
|
|
594 x_initialize_frame_menubar (struct frame *f)
|
|
|
595 {
|
|
|
596 return set_frame_menubar (f, 1, 1);
|
|
|
597 }
|
|
|
598
|
|
|
599
|
|
|
600 static LWLIB_ID last_popup_menu_selection_callback_id;
|
|
|
601
|
|
|
602 static void
|
|
|
603 popup_menu_selection_callback (Widget widget, LWLIB_ID id,
|
|
|
604 XtPointer client_data)
|
|
|
605 {
|
|
|
606 last_popup_menu_selection_callback_id = id;
|
|
|
607 popup_selection_callback (widget, id, client_data);
|
|
|
608 /* lw_destroy_all_widgets() will be called from popup_down_callback() */
|
|
|
609 }
|
|
|
610
|
|
|
611 static void
|
|
|
612 popup_menu_down_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
|
|
|
613 {
|
|
|
614 if (popup_handled_p (id))
|
|
|
615 return;
|
|
|
616 assert (popup_up_p != 0);
|
|
|
617 ungcpro_popup_callbacks (id);
|
|
|
618 popup_up_p--;
|
|
|
619 /* if this isn't called immediately after the selection callback, then
|
|
|
620 there wasn't a menu selection. */
|
|
|
621 if (id != last_popup_menu_selection_callback_id)
|
|
|
622 popup_selection_callback (widget, id, (XtPointer) -1);
|
|
|
623 lw_destroy_all_widgets (id);
|
|
|
624 }
|
|
|
625
|
|
|
626
|
|
|
627 static void
|
|
|
628 make_dummy_xbutton_event (XEvent *dummy,
|
|
185
|
629 Widget daddy,
|
|
0
|
630 struct Lisp_Event *eev)
|
|
|
631 /* NULL for eev means query pointer */
|
|
|
632 {
|
|
|
633 XButtonPressedEvent *btn = (XButtonPressedEvent *) dummy;
|
|
|
634
|
|
|
635 btn->type = ButtonPress;
|
|
|
636 btn->serial = 0;
|
|
|
637 btn->send_event = 0;
|
|
|
638 btn->display = XtDisplay (daddy);
|
|
|
639 btn->window = XtWindow (daddy);
|
|
|
640 if (eev)
|
|
|
641 {
|
|
|
642 Position shellx, shelly, framex, framey;
|
|
|
643 Widget shell = XtParent (daddy);
|
|
165
|
644 Arg al [2];
|
|
0
|
645 btn->time = eev->timestamp;
|
|
|
646 btn->button = eev->event.button.button;
|
|
|
647 btn->root = RootWindowOfScreen (XtScreen (daddy));
|
|
|
648 btn->subwindow = (Window) NULL;
|
|
|
649 btn->x = eev->event.button.x;
|
|
|
650 btn->y = eev->event.button.y;
|
|
165
|
651 XtSetArg (al [0], XtNx, &shellx);
|
|
|
652 XtSetArg (al [1], XtNy, &shelly);
|
|
|
653 XtGetValues (shell, al, 2);
|
|
|
654 XtSetArg (al [0], XtNx, &framex);
|
|
|
655 XtSetArg (al [1], XtNy, &framey);
|
|
|
656 XtGetValues (daddy, al, 2);
|
|
0
|
657 btn->x_root = shellx + framex + btn->x;
|
|
|
658 btn->y_root = shelly + framey + btn->y;;
|
|
|
659 btn->state = ButtonPressMask; /* all buttons pressed */
|
|
|
660 }
|
|
|
661 else
|
|
|
662 {
|
|
|
663 /* CurrentTime is just ZERO, so it's worthless for
|
|
|
664 determining relative click times. */
|
|
|
665 struct device *d = get_device_from_display (XtDisplay (daddy));
|
|
|
666 btn->time = DEVICE_X_MOUSE_TIMESTAMP (d); /* event-Xt maintains this */
|
|
|
667 btn->button = 0;
|
|
|
668 XQueryPointer (btn->display, btn->window, &btn->root,
|
|
|
669 &btn->subwindow, &btn->x_root, &btn->y_root,
|
|
|
670 &btn->x, &btn->y, &btn->state);
|
|
|
671 }
|
|
|
672 }
|
|
|
673
|
|
|
674
|
|
|
675
|
|
|
676 static void
|
|
|
677 x_update_frame_menubar_internal (struct frame *f)
|
|
|
678 {
|
|
|
679 /* We assume the menubar contents has changed if the global flag is set,
|
|
|
680 or if the current buffer has changed, or if the menubar has never
|
|
|
681 been updated before.
|
|
|
682 */
|
|
|
683 int menubar_contents_changed =
|
|
|
684 (f->menubar_changed
|
|
|
685 || NILP (FRAME_MENUBAR_DATA (f))
|
|
|
686 || (!EQ (XFRAME_MENUBAR_DATA (f)->last_menubar_buffer,
|
|
|
687 XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f))->buffer)));
|
|
|
688
|
|
102
|
689 Boolean menubar_was_visible = XtIsManaged (FRAME_X_MENUBAR_WIDGET (f));
|
|
|
690 Boolean menubar_will_be_visible = menubar_was_visible;
|
|
|
691 Boolean menubar_visibility_changed;
|
|
185
|
692
|
|
0
|
693 if (menubar_contents_changed)
|
|
|
694 menubar_will_be_visible = set_frame_menubar (f, 0, 0);
|
|
|
695
|
|
|
696 menubar_visibility_changed = menubar_was_visible != menubar_will_be_visible;
|
|
|
697
|
|
282
|
698 if (!menubar_visibility_changed)
|
|
0
|
699 return;
|
|
|
700
|
|
|
701 /* Set menubar visibility */
|
|
282
|
702 (menubar_will_be_visible ? XtManageChild : XtUnmanageChild)
|
|
|
703 (FRAME_X_MENUBAR_WIDGET (f));
|
|
185
|
704
|
|
282
|
705 MARK_FRAME_SIZE_SLIPPED (f);
|
|
0
|
706 }
|
|
|
707
|
|
|
708 static void
|
|
|
709 x_update_frame_menubars (struct frame *f)
|
|
|
710 {
|
|
|
711 assert (FRAME_X_P (f));
|
|
|
712
|
|
|
713 x_update_frame_menubar_internal (f);
|
|
|
714
|
|
|
715 /* #### This isn't going to work right now that this function works on
|
|
|
716 a per-frame, not per-device basis. Guess what? I don't care. */
|
|
|
717 }
|
|
|
718
|
|
|
719 static void
|
|
|
720 x_free_frame_menubars (struct frame *f)
|
|
|
721 {
|
|
|
722 Widget menubar_widget;
|
|
|
723
|
|
|
724 assert (FRAME_X_P (f));
|
|
185
|
725
|
|
0
|
726 menubar_widget = FRAME_X_MENUBAR_WIDGET (f);
|
|
|
727 if (menubar_widget)
|
|
|
728 {
|
|
|
729 LWLIB_ID id = XFRAME_MENUBAR_DATA (f)->id;
|
|
|
730 lw_destroy_all_widgets (id);
|
|
|
731 XFRAME_MENUBAR_DATA (f)->id = 0;
|
|
|
732 }
|
|
|
733 }
|
|
|
734
|
|
|
735 static void
|
|
|
736 x_popup_menu (Lisp_Object menu_desc, Lisp_Object event)
|
|
|
737 {
|
|
|
738 int menu_id;
|
|
|
739 struct frame *f = selected_frame ();
|
|
|
740 widget_value *data;
|
|
|
741 Widget parent;
|
|
|
742 Widget menu;
|
|
|
743 struct Lisp_Event *eev = NULL;
|
|
|
744 XEvent xev;
|
|
272
|
745 Lisp_Object frame;
|
|
0
|
746
|
|
|
747 XSETFRAME (frame, f);
|
|
|
748 CHECK_X_FRAME (frame);
|
|
|
749 parent = FRAME_X_SHELL_WIDGET (f);
|
|
|
750
|
|
|
751 if (!NILP (event))
|
|
|
752 {
|
|
|
753 CHECK_LIVE_EVENT (event);
|
|
|
754 eev= XEVENT (event);
|
|
|
755 if (eev->event_type != button_press_event
|
|
|
756 && eev->event_type != button_release_event)
|
|
|
757 wrong_type_argument (Qmouse_event_p, event);
|
|
|
758 }
|
|
|
759 else if (!NILP (Vthis_command_keys))
|
|
|
760 {
|
|
|
761 /* if an event wasn't passed, use the last event of the event sequence
|
|
|
762 currently being executed, if that event is a mouse event */
|
|
|
763 eev = XEVENT (Vthis_command_keys); /* last event first */
|
|
|
764 if (eev->event_type != button_press_event
|
|
|
765 && eev->event_type != button_release_event)
|
|
|
766 eev = NULL;
|
|
|
767 }
|
|
|
768 make_dummy_xbutton_event (&xev, parent, eev);
|
|
|
769
|
|
|
770 if (SYMBOLP (menu_desc))
|
|
|
771 menu_desc = Fsymbol_value (menu_desc);
|
|
|
772 CHECK_CONS (menu_desc);
|
|
|
773 CHECK_STRING (XCAR (menu_desc));
|
|
|
774 data = menu_item_descriptor_to_widget_value (menu_desc, POPUP_TYPE, 1, 1);
|
|
|
775
|
|
|
776 if (! data) error ("no menu");
|
|
185
|
777
|
|
0
|
778 menu_id = new_lwlib_id ();
|
|
|
779 menu = lw_create_widget ("popup", "popup" /* data->name */, menu_id, data,
|
|
|
780 parent, 1, 0,
|
|
|
781 popup_menu_selection_callback,
|
|
|
782 popup_menu_down_callback);
|
|
|
783 free_popup_widget_value_tree (data);
|
|
|
784
|
|
|
785 gcpro_popup_callbacks (menu_id);
|
|
|
786
|
|
|
787 /* Setting zmacs-region-stays is necessary here because executing a command
|
|
|
788 from a menu is really a two-command process: the first command (bound to
|
|
|
789 the button-click) simply pops up the menu, and returns. This causes a
|
|
|
790 sequence of magic-events (destined for the popup-menu widget) to begin.
|
|
|
791 Eventually, a menu item is selected, and a menu-event blip is pushed onto
|
|
|
792 the end of the input stream, which is then executed by the event loop.
|
|
185
|
793
|
|
0
|
794 So there are two command-events, with a bunch of magic-events between
|
|
|
795 them. We don't want the *first* command event to alter the state of the
|
|
|
796 region, so that the region can be available as an argument for the second
|
|
|
797 command.
|
|
|
798 */
|
|
|
799 if (zmacs_regions)
|
|
|
800 zmacs_region_stays = 1;
|
|
|
801
|
|
|
802 popup_up_p++;
|
|
|
803 lw_popup_menu (menu, &xev);
|
|
|
804 /* this speeds up display of pop-up menus */
|
|
|
805 XFlush (XtDisplay (parent));
|
|
|
806 }
|
|
|
807
|
|
|
808
|
|
|
809 void
|
|
|
810 syms_of_menubar_x (void)
|
|
|
811 {
|
|
|
812 }
|
|
|
813
|
|
|
814 void
|
|
|
815 console_type_create_menubar_x (void)
|
|
|
816 {
|
|
|
817 CONSOLE_HAS_METHOD (x, update_frame_menubars);
|
|
|
818 CONSOLE_HAS_METHOD (x, free_frame_menubars);
|
|
|
819 CONSOLE_HAS_METHOD (x, popup_menu);
|
|
|
820 }
|
|
|
821
|
|
|
822 void
|
|
|
823 vars_of_menubar_x (void)
|
|
|
824 {
|
|
272
|
825 last_popup_menu_selection_callback_id = (LWLIB_ID) -1;
|
|
0
|
826
|
|
|
827 #if defined (LWLIB_MENUBARS_LUCID)
|
|
|
828 Fprovide (intern ("lucid-menubars"));
|
|
|
829 #elif defined (LWLIB_MENUBARS_MOTIF)
|
|
|
830 Fprovide (intern ("motif-menubars"));
|
|
|
831 #elif defined (LWLIB_MENUBARS_ATHENA)
|
|
|
832 Fprovide (intern ("athena-menubars"));
|
|
|
833 #endif
|
|
|
834 }
|
