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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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412
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24 /* created 16-dec-91 by jwz */
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0
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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 "EmacsFrame.h"
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31 #include "gui-x.h"
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32
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33 #include "buffer.h"
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34 #include "commands.h" /* zmacs_regions */
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412
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35 #include "gui.h"
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0
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36 #include "events.h"
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37 #include "frame.h"
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38 #include "opaque.h"
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39 #include "window.h"
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40
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41 static int set_frame_menubar (struct frame *f,
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42 int deep_p,
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43 int first_time_p);
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44
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45 #define FRAME_MENUBAR_DATA(frame) ((frame)->menubar_data)
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46 #define XFRAME_MENUBAR_DATA(frame) XPOPUP_DATA ((frame)->menubar_data)
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47
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48 #define MENUBAR_TYPE 0
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49 #define SUBMENU_TYPE 1
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50 #define POPUP_TYPE 2
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51
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52
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53 /* Converting Lisp menu tree descriptions to lwlib's `widget_value' form.
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54
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55 menu_item_descriptor_to_widget_value() converts a lisp description of a
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56 menubar into a tree of widget_value structures. It allocates widget_values
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57 with malloc_widget_value() and allocates other storage only for the `key'
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58 slot. All other slots are filled with pointers to Lisp_String data. We
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59 allocate a widget_value description of the menu or menubar, and hand it to
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60 lwlib, which then makes a copy of it, which it manages internally. We then
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61 immediately free our widget_value tree; it will not be referenced again.
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62
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63 Incremental menu construction callbacks operate just a bit differently.
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64 They allocate widget_values and call replace_widget_value_tree() to tell
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65 lwlib to destructively modify the incremental stub (subtree) of its
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66 separate widget_value tree.
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67
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68 This function is highly recursive (it follows the menu trees) and may call
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69 eval. The reason we keep pointers to lisp string data instead of copying
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70 it and freeing it later is to avoid the speed penalty that would entail
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71 (since this needs to be fast, in the simple cases at least). (The reason
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72 we malloc/free the keys slot is because there's not a lisp string around
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73 for us to use in that case.)
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74
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75 Since we keep pointers to lisp strings, and we call eval, we could lose if
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76 GC relocates (or frees) those strings. It's not easy to gc protect the
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77 strings because of the recursive nature of this function, and the fact that
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78 it returns a data structure that gets freed later. So... we do the
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79 sleaziest thing possible and inhibit GC for the duration. This is probably
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80 not a big deal...
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81
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82 We do not have to worry about the pointers to Lisp_String data after
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83 this function successfully finishes. lwlib copies all such data with
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16
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84 strdup(). */
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0
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85
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86 static widget_value *
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185
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87 menu_item_descriptor_to_widget_value_1 (Lisp_Object desc,
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0
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88 int menu_type, int deep_p,
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89 int filter_p,
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90 int depth)
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91 {
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92 /* This function cannot GC.
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93 It is only called from menu_item_descriptor_to_widget_value, which
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94 prohibits GC. */
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95 /* !!#### This function has not been Mule-ized */
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96 int menubar_root_p = (menu_type == MENUBAR_TYPE && depth == 0);
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412
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97 widget_value *wv;
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98 Lisp_Object wv_closure;
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0
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99 int count = specpdl_depth ();
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100 int partition_seen = 0;
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101
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412
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102 wv = xmalloc_widget_value ();
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103
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104 wv_closure = make_opaque_ptr (wv);
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0
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105 record_unwind_protect (widget_value_unwind, wv_closure);
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106
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107 if (STRINGP (desc))
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108 {
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16
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109 char *string_chars = (char *) XSTRING_DATA (desc);
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0
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110 wv->type = (separator_string_p (string_chars) ? SEPARATOR_TYPE :
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111 TEXT_TYPE);
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112 #if 1
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113 /* #### - should internationalize with X resources instead.
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114 Not so! --ben */
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115 string_chars = GETTEXT (string_chars);
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116 #endif
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117 if (wv->type == SEPARATOR_TYPE)
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118 {
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119 wv->value = menu_separator_style (string_chars);
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185
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120 }
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0
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121 else
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122 {
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412
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123 wv->name = string_chars;
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0
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124 wv->enabled = 1;
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384
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125 /* dverna Dec. 98: command_builder_operate_menu_accelerator will
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126 manipulate the accel as a Lisp_Object if the widget has a name.
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127 Since simple labels have a name, but no accel, we *must* set it
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128 to nil */
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129 wv->accel = LISP_TO_VOID (Qnil);
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0
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130 }
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131 }
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132 else if (VECTORP (desc))
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133 {
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412
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134 if (!button_item_to_widget_value (desc, wv, 1,
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0
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135 (menu_type == MENUBAR_TYPE
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412
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136 && depth <= 1)))
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0
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137 {
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138 /* :included form was nil */
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139 wv = NULL;
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140 goto menu_item_done;
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141 }
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142 }
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143 else if (CONSP (desc))
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144 {
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145 Lisp_Object incremental_data = desc;
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146 widget_value *prev = 0;
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147
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148 if (STRINGP (XCAR (desc)))
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149 {
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150 Lisp_Object key, val;
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173
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151 Lisp_Object include_p = Qnil, hook_fn = Qnil, config_tag = Qnil;
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377
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152 Lisp_Object active_p = Qt;
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175
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153 Lisp_Object accel;
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0
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154 int included_spec = 0;
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377
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155 int active_spec = 0;
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0
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156 wv->type = CASCADE_TYPE;
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157 wv->enabled = 1;
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16
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158 wv->name = (char *) XSTRING_DATA (LISP_GETTEXT (XCAR (desc)));
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175
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159
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412
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160 accel = menu_name_to_accelerator (wv->name);
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175
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161 wv->accel = LISP_TO_VOID (accel);
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162
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0
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163 desc = Fcdr (desc);
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164
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165 while (key = Fcar (desc), KEYWORDP (key))
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166 {
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167 Lisp_Object cascade = desc;
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168 desc = Fcdr (desc);
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169 if (NILP (desc))
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380
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170 signal_simple_error ("Keyword in menu lacks a value",
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185
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171 cascade);
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0
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172 val = Fcar (desc);
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173 desc = Fcdr (desc);
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174 if (EQ (key, Q_included))
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175 include_p = val, included_spec = 1;
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176 else if (EQ (key, Q_config))
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177 config_tag = val;
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178 else if (EQ (key, Q_filter))
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179 hook_fn = val;
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377
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180 else if (EQ (key, Q_active))
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181 active_p = val, active_spec = 1;
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175
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182 else if (EQ (key, Q_accelerator))
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183 {
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184 if ( SYMBOLP (val)
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185 || CHARP (val))
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186 wv->accel = LISP_TO_VOID (val);
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187 else
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188 signal_simple_error ("bad keyboard accelerator", val);
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189 }
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377
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190 else if (EQ (key, Q_label))
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191 {
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192 /* implement in 21.2 */
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193 }
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185
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194 else
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380
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195 signal_simple_error ("Unknown menu cascade keyword", cascade);
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0
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196 }
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197
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198 if ((!NILP (config_tag)
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199 && NILP (Fmemq (config_tag, Vmenubar_configuration)))
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200 || (included_spec && NILP (Feval (include_p))))
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201 {
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202 wv = NULL;
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203 goto menu_item_done;
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204 }
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377
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205
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206 if (active_spec)
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207 active_p = Feval (active_p);
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380
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208
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377
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209 if (!NILP (hook_fn) && !NILP (active_p))
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0
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210 {
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219
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211 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
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0
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212 if (filter_p || depth == 0)
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213 {
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185
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214 #endif
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0
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215 desc = call1_trapping_errors ("Error in menubar filter",
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216 hook_fn, desc);
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217 if (UNBOUNDP (desc))
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218 desc = Qnil;
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219
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219 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
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0
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220 }
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221 else
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222 {
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223 widget_value *incr_wv = xmalloc_widget_value ();
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224 wv->contents = incr_wv;
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225 incr_wv->type = INCREMENTAL_TYPE;
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226 incr_wv->enabled = 1;
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227 incr_wv->name = wv->name;
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228 /* This is automatically GC protected through
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229 the call to lw_map_widget_values(); no need
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230 to worry. */
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231 incr_wv->call_data = LISP_TO_VOID (incremental_data);
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232 goto menu_item_done;
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233 }
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243
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234 #endif /* LWLIB_MENUBARS_LUCID || LWLIB_MENUBARS_MOTIF */
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0
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235 }
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236 if (menu_type == POPUP_TYPE && popup_menu_titles && depth == 0)
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237 {
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238 /* Simply prepend three more widget values to the contents of
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239 the menu: a label, and two separators (to get a double
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240 line). */
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241 widget_value *title_wv = xmalloc_widget_value ();
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242 widget_value *sep_wv = xmalloc_widget_value ();
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243 title_wv->type = TEXT_TYPE;
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412
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244 title_wv->name = wv->name;
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0
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245 title_wv->enabled = 1;
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246 title_wv->next = sep_wv;
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247 sep_wv->type = SEPARATOR_TYPE;
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248 sep_wv->value = menu_separator_style ("==");
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249 sep_wv->next = 0;
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185
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250
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0
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251 wv->contents = title_wv;
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252 prev = sep_wv;
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253 }
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377
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254 wv->enabled = ! NILP (active_p);
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255 if (deep_p && !wv->enabled && !NILP (desc))
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256 {
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257 widget_value *dummy;
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258 /* Add a fake entry so the menus show up */
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259 wv->contents = dummy = xmalloc_widget_value ();
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412
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260 dummy->name = "(inactive)";
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380
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261 dummy->accel = LISP_TO_VOID (Qnil);
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377
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262 dummy->enabled = 0;
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263 dummy->selected = 0;
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264 dummy->value = NULL;
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265 dummy->type = BUTTON_TYPE;
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266 dummy->call_data = NULL;
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267 dummy->next = NULL;
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380
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268
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377
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269 goto menu_item_done;
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412
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270 }
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377
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271
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0
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272 }
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273 else if (menubar_root_p)
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274 {
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412
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275 wv->name = (char *) "menubar";
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0
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276 wv->type = CASCADE_TYPE; /* Well, nothing else seems to fit and
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277 this is ignored anyway... */
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278 }
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279 else
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280 {
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380
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281 signal_simple_error ("Menu name (first element) must be a string",
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0
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282 desc);
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283 }
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380
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284
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0
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285 if (deep_p || menubar_root_p)
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286 {
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287 widget_value *next;
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288 for (; !NILP (desc); desc = Fcdr (desc))
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289 {
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290 Lisp_Object child = Fcar (desc);
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291 if (menubar_root_p && NILP (child)) /* the partition */
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292 {
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293 if (partition_seen)
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294 error (
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412
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295 "More than one partition (nil) in menubar description");
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0
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296 partition_seen = 1;
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297 next = xmalloc_widget_value ();
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298 next->type = PUSHRIGHT_TYPE;
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299 }
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300 else
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301 {
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16
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302 next = menu_item_descriptor_to_widget_value_1
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303 (child, menu_type, deep_p, filter_p, depth + 1);
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0
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304 }
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305 if (! next)
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306 continue;
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307 else if (prev)
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308 prev->next = next;
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309 else
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310 wv->contents = next;
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311 prev = next;
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312 }
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313 }
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314 if (deep_p && !wv->contents)
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315 wv = NULL;
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316 }
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317 else if (NILP (desc))
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318 error ("nil may not appear in menu descriptions");
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319 else
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380
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320 signal_simple_error ("Unrecognized menu descriptor", desc);
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0
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321
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412
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322 menu_item_done:
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0
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323
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|
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324 if (wv)
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325 {
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326 /* Completed normally. Clear out the object that widget_value_unwind()
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327 will be called with to tell it not to free the wv (as we are
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328 returning it.) */
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329 set_opaque_ptr (wv_closure, 0);
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330 }
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331
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332 unbind_to (count, Qnil);
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333 return wv;
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334 }
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335
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336 static widget_value *
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185
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337 menu_item_descriptor_to_widget_value (Lisp_Object desc,
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0
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338 int menu_type, /* if this is a menubar,
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412
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339 popup or sub menu */
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0
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340 int deep_p, /* */
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|
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341 int filter_p) /* if :filter forms
|
|
185
|
342 should run now */
|
|
0
|
343 {
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|
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344 widget_value *wv;
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|
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345 int count = specpdl_depth ();
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346 record_unwind_protect (restore_gc_inhibit,
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|
|
347 make_int (gc_currently_forbidden));
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|
|
348 gc_currently_forbidden = 1;
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|
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349 /* Can't GC! */
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350 wv = menu_item_descriptor_to_widget_value_1 (desc, menu_type, deep_p,
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351 filter_p, 0);
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352 unbind_to (count, Qnil);
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|
353 return wv;
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|
|
354 }
|
|
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355
|
|
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356
|
|
219
|
357 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
|
|
138
|
358 int in_menu_callback;
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|
|
359
|
|
169
|
360 static Lisp_Object
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|
|
361 restore_in_menu_callback (Lisp_Object val)
|
|
138
|
362 {
|
|
412
|
363 in_menu_callback = XINT(val);
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|
|
364 return Qnil;
|
|
138
|
365 }
|
|
243
|
366 #endif /* LWLIB_MENUBARS_LUCID || LWLIB_MENUBARS_MOTIF */
|
|
138
|
367
|
|
373
|
368 #if 0
|
|
|
369 /* #### Sort of a hack needed to process Vactivate_menubar_hook
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|
|
370 correctly wrt buffer-local values. A correct solution would
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|
|
371 involve adding a callback mechanism to run_hook(). This function
|
|
|
372 is currently unused. */
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|
|
373 static int
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|
|
374 my_run_hook (Lisp_Object hooksym, int allow_global_p)
|
|
|
375 {
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|
|
376 /* This function can GC */
|
|
|
377 Lisp_Object tail;
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|
|
378 Lisp_Object value = Fsymbol_value (hooksym);
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|
|
379 int changes = 0;
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|
|
380
|
|
|
381 if (!NILP (value) && (!CONSP (value) || EQ (XCAR (value), Qlambda)))
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|
|
382 return !EQ (call0 (value), Qt);
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|
|
383
|
|
|
384 EXTERNAL_LIST_LOOP (tail, value)
|
|
|
385 {
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|
|
386 if (allow_global_p && EQ (XCAR (tail), Qt))
|
|
|
387 changes |= my_run_hook (Fdefault_value (hooksym), 0);
|
|
|
388 if (!EQ (call0 (XCAR (tail)), Qt))
|
|
|
389 changes = 1;
|
|
|
390 }
|
|
|
391 return changes;
|
|
|
392 }
|
|
|
393 #endif
|
|
|
394
|
|
138
|
395
|
|
0
|
396 /* The order in which callbacks are run is funny to say the least.
|
|
|
397 It's sometimes tricky to avoid running a callback twice, and to
|
|
|
398 avoid returning prematurely. So, this function returns true
|
|
|
399 if the menu's callbacks are no longer gc protected. So long
|
|
|
400 as we unprotect them before allowing other callbacks to run,
|
|
|
401 everything should be ok.
|
|
|
402
|
|
|
403 The pre_activate_callback() *IS* intentionally called multiple times.
|
|
|
404 If client_data == NULL, then it's being called before the menu is posted.
|
|
|
405 If client_data != NULL, then client_data is a (widget_value *) and
|
|
|
406 client_data->data is a Lisp_Object pointing to a lisp submenu description
|
|
|
407 that must be converted into widget_values. *client_data is destructively
|
|
185
|
408 modified.
|
|
0
|
409
|
|
|
410 #### Stig thinks that there may be a GC problem here due to the
|
|
|
411 fact that pre_activate_callback() is called multiple times, but I
|
|
|
412 think he's wrong.
|
|
|
413
|
|
|
414 */
|
|
|
415
|
|
|
416 static void
|
|
|
417 pre_activate_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
|
|
|
418 {
|
|
|
419 /* This function can GC */
|
|
|
420 struct device *d = get_device_from_display (XtDisplay (widget));
|
|
|
421 struct frame *f = x_any_window_to_frame (d, XtWindow (widget));
|
|
82
|
422 Lisp_Object frame;
|
|
138
|
423 int count;
|
|
0
|
424
|
|
175
|
425 /* set in lwlib to the time stamp associated with the most recent menu
|
|
|
426 operation */
|
|
|
427 extern Time x_focus_timestamp_really_sucks_fix_me_better;
|
|
|
428
|
|
0
|
429 if (!f)
|
|
|
430 f = x_any_window_to_frame (d, XtWindow (XtParent (widget)));
|
|
|
431 if (!f)
|
|
|
432 return;
|
|
|
433
|
|
82
|
434 /* make sure f is the selected frame */
|
|
|
435 XSETFRAME (frame, f);
|
|
|
436 Fselect_frame (frame);
|
|
|
437
|
|
0
|
438 if (client_data)
|
|
|
439 {
|
|
|
440 /* this is an incremental menu construction callback */
|
|
|
441 widget_value *hack_wv = (widget_value *) client_data;
|
|
|
442 Lisp_Object submenu_desc;
|
|
|
443 widget_value *wv;
|
|
|
444
|
|
|
445 assert (hack_wv->type == INCREMENTAL_TYPE);
|
|
|
446 VOID_TO_LISP (submenu_desc, hack_wv->call_data);
|
|
138
|
447
|
|
|
448 /*
|
|
|
449 * #### Fix the menu code so this isn't necessary.
|
|
|
450 *
|
|
|
451 * Protect against reentering the menu code otherwise we will
|
|
|
452 * crash later when the code gets confused at the state
|
|
|
453 * changes.
|
|
|
454 */
|
|
|
455 count = specpdl_depth ();
|
|
|
456 record_unwind_protect (restore_in_menu_callback,
|
|
|
457 make_int (in_menu_callback));
|
|
|
458 in_menu_callback = 1;
|
|
0
|
459 wv = menu_item_descriptor_to_widget_value (submenu_desc, SUBMENU_TYPE,
|
|
114
|
460 1, 0);
|
|
138
|
461 unbind_to (count, Qnil);
|
|
|
462
|
|
0
|
463 if (!wv)
|
|
|
464 {
|
|
|
465 wv = xmalloc_widget_value ();
|
|
|
466 wv->type = CASCADE_TYPE;
|
|
|
467 wv->next = NULL;
|
|
398
|
468 wv->accel = LISP_TO_VOID (Qnil);
|
|
0
|
469 wv->contents = xmalloc_widget_value ();
|
|
|
470 wv->contents->type = TEXT_TYPE;
|
|
412
|
471 wv->contents->name = (char *) "No menu";
|
|
0
|
472 wv->contents->next = NULL;
|
|
398
|
473 wv->contents->accel = LISP_TO_VOID (Qnil);
|
|
0
|
474 }
|
|
|
475 assert (wv && wv->type == CASCADE_TYPE && wv->contents);
|
|
|
476 replace_widget_value_tree (hack_wv, wv->contents);
|
|
|
477 free_popup_widget_value_tree (wv);
|
|
|
478 }
|
|
373
|
479 else if (!POPUP_DATAP (FRAME_MENUBAR_DATA (f)))
|
|
|
480 return;
|
|
0
|
481 else
|
|
|
482 {
|
|
373
|
483 #if 0 /* Unused, see comment below. */
|
|
|
484 int any_changes;
|
|
|
485
|
|
0
|
486 /* #### - this menubar update mechanism is expensively anti-social and
|
|
|
487 the activate-menubar-hook is now mostly obsolete. */
|
|
373
|
488 any_changes = my_run_hook (Qactivate_menubar_hook, 1);
|
|
185
|
489
|
|
0
|
490 /* #### - It is necessary to *ALWAYS* call set_frame_menubar() now that
|
|
|
491 incremental menus are implemented. If a subtree of a menu has been
|
|
|
492 updated incrementally (a destructive operation), then that subtree
|
|
|
493 must somehow be wiped.
|
|
|
494
|
|
|
495 It is difficult to undo the destructive operation in lwlib because
|
|
|
496 a pointer back to lisp data needs to be hidden away somewhere. So
|
|
|
497 that an INCREMENTAL_TYPE widget_value can be recreated... Hmmmmm. */
|
|
|
498 if (any_changes ||
|
|
|
499 !XFRAME_MENUBAR_DATA (f)->menubar_contents_up_to_date)
|
|
373
|
500 set_frame_menubar (f, 1, 0);
|
|
|
501 #else
|
|
|
502 run_hook (Qactivate_menubar_hook);
|
|
|
503 set_frame_menubar (f, 1, 0);
|
|
371
|
504 #endif
|
|
175
|
505 DEVICE_X_MOUSE_TIMESTAMP (XDEVICE (FRAME_DEVICE (f))) =
|
|
|
506 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (XDEVICE (FRAME_DEVICE (f))) =
|
|
|
507 x_focus_timestamp_really_sucks_fix_me_better;
|
|
0
|
508 }
|
|
|
509 }
|
|
|
510
|
|
|
511 static widget_value *
|
|
|
512 compute_menubar_data (struct frame *f, Lisp_Object menubar, int deep_p)
|
|
|
513 {
|
|
412
|
514 widget_value *data;
|
|
|
515
|
|
0
|
516 if (NILP (menubar))
|
|
412
|
517 data = 0;
|
|
0
|
518 else
|
|
|
519 {
|
|
412
|
520 Lisp_Object old_buffer;
|
|
82
|
521 int count = specpdl_depth ();
|
|
|
522
|
|
412
|
523 old_buffer = Fcurrent_buffer ();
|
|
|
524 record_unwind_protect (Fset_buffer, old_buffer);
|
|
|
525 Fset_buffer ( XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer);
|
|
0
|
526 data = menu_item_descriptor_to_widget_value (menubar, MENUBAR_TYPE,
|
|
|
527 deep_p, 0);
|
|
412
|
528 Fset_buffer (old_buffer);
|
|
82
|
529 unbind_to (count, Qnil);
|
|
0
|
530 }
|
|
412
|
531 return data;
|
|
0
|
532 }
|
|
|
533
|
|
|
534 static int
|
|
|
535 set_frame_menubar (struct frame *f, int deep_p, int first_time_p)
|
|
|
536 {
|
|
|
537 widget_value *data;
|
|
|
538 Lisp_Object menubar;
|
|
|
539 int menubar_visible;
|
|
|
540 long id;
|
|
412
|
541 /* As for the toolbar, the minibuffer does not have its own menubar. */
|
|
0
|
542 struct window *w = XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f));
|
|
|
543
|
|
|
544 if (! FRAME_X_P (f))
|
|
|
545 return 0;
|
|
|
546
|
|
|
547 /***** first compute the contents of the menubar *****/
|
|
|
548
|
|
|
549 if (! first_time_p)
|
|
|
550 {
|
|
|
551 /* evaluate `current-menubar' in the buffer of the selected window
|
|
|
552 of the frame in question. */
|
|
|
553 menubar = symbol_value_in_buffer (Qcurrent_menubar, w->buffer);
|
|
|
554 }
|
|
|
555 else
|
|
|
556 {
|
|
|
557 /* That's a little tricky the first time since the frame isn't
|
|
|
558 fully initialized yet. */
|
|
|
559 menubar = Fsymbol_value (Qcurrent_menubar);
|
|
|
560 }
|
|
|
561
|
|
|
562 if (NILP (menubar))
|
|
|
563 {
|
|
|
564 menubar = Vblank_menubar;
|
|
|
565 menubar_visible = 0;
|
|
|
566 }
|
|
|
567 else
|
|
|
568 menubar_visible = !NILP (w->menubar_visible_p);
|
|
|
569
|
|
|
570 data = compute_menubar_data (f, menubar, deep_p);
|
|
|
571 if (!data || (!data->next && !data->contents))
|
|
|
572 abort ();
|
|
185
|
573
|
|
0
|
574 if (NILP (FRAME_MENUBAR_DATA (f)))
|
|
|
575 {
|
|
|
576 struct popup_data *mdata =
|
|
398
|
577 alloc_lcrecord_type (struct popup_data, &lrecord_popup_data);
|
|
0
|
578
|
|
|
579 mdata->id = new_lwlib_id ();
|
|
|
580 mdata->last_menubar_buffer = Qnil;
|
|
|
581 mdata->menubar_contents_up_to_date = 0;
|
|
|
582 XSETPOPUP_DATA (FRAME_MENUBAR_DATA (f), mdata);
|
|
|
583 }
|
|
|
584
|
|
|
585 /***** now store into the menubar widget, creating it if necessary *****/
|
|
|
586
|
|
|
587 id = XFRAME_MENUBAR_DATA (f)->id;
|
|
|
588 if (!FRAME_X_MENUBAR_WIDGET (f))
|
|
|
589 {
|
|
|
590 Widget parent = FRAME_X_CONTAINER_WIDGET (f);
|
|
|
591
|
|
|
592 assert (first_time_p);
|
|
|
593
|
|
|
594 /* It's the first time we've mapped the menubar so compute its
|
|
|
595 contents completely once. This makes sure that the menubar
|
|
|
596 components are created with the right type. */
|
|
|
597 if (!deep_p)
|
|
|
598 {
|
|
|
599 free_popup_widget_value_tree (data);
|
|
|
600 data = compute_menubar_data (f, menubar, 1);
|
|
|
601 }
|
|
|
602
|
|
|
603
|
|
|
604 FRAME_X_MENUBAR_WIDGET (f) =
|
|
|
605 lw_create_widget ("menubar", "menubar", id, data, parent,
|
|
|
606 0, pre_activate_callback,
|
|
|
607 popup_selection_callback, 0);
|
|
|
608
|
|
|
609 }
|
|
|
610 else
|
|
|
611 {
|
|
|
612 lw_modify_all_widgets (id, data, deep_p ? True : False);
|
|
|
613 }
|
|
|
614 free_popup_widget_value_tree (data);
|
|
185
|
615
|
|
0
|
616 XFRAME_MENUBAR_DATA (f)->menubar_contents_up_to_date = deep_p;
|
|
|
617 XFRAME_MENUBAR_DATA (f)->last_menubar_buffer =
|
|
|
618 XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f))->buffer;
|
|
|
619 return menubar_visible;
|
|
|
620 }
|
|
|
621
|
|
|
622
|
|
380
|
623 /* Called from x_create_widgets() to create the initial menubar of a frame
|
|
0
|
624 before it is mapped, so that the window is mapped with the menubar already
|
|
|
625 there instead of us tacking it on later and thrashing the window after it
|
|
|
626 is visible. */
|
|
|
627 int
|
|
|
628 x_initialize_frame_menubar (struct frame *f)
|
|
|
629 {
|
|
|
630 return set_frame_menubar (f, 1, 1);
|
|
|
631 }
|
|
|
632
|
|
|
633
|
|
|
634 static LWLIB_ID last_popup_menu_selection_callback_id;
|
|
|
635
|
|
|
636 static void
|
|
|
637 popup_menu_selection_callback (Widget widget, LWLIB_ID id,
|
|
|
638 XtPointer client_data)
|
|
|
639 {
|
|
|
640 last_popup_menu_selection_callback_id = id;
|
|
|
641 popup_selection_callback (widget, id, client_data);
|
|
|
642 /* lw_destroy_all_widgets() will be called from popup_down_callback() */
|
|
|
643 }
|
|
|
644
|
|
|
645 static void
|
|
|
646 popup_menu_down_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
|
|
|
647 {
|
|
|
648 if (popup_handled_p (id))
|
|
|
649 return;
|
|
|
650 assert (popup_up_p != 0);
|
|
|
651 ungcpro_popup_callbacks (id);
|
|
|
652 popup_up_p--;
|
|
|
653 /* if this isn't called immediately after the selection callback, then
|
|
|
654 there wasn't a menu selection. */
|
|
|
655 if (id != last_popup_menu_selection_callback_id)
|
|
|
656 popup_selection_callback (widget, id, (XtPointer) -1);
|
|
|
657 lw_destroy_all_widgets (id);
|
|
|
658 }
|
|
|
659
|
|
|
660
|
|
|
661 static void
|
|
412
|
662 make_dummy_xbutton_event (XEvent *dummy,
|
|
|
663 Widget daddy,
|
|
|
664 struct Lisp_Event *eev)
|
|
0
|
665 /* NULL for eev means query pointer */
|
|
|
666 {
|
|
|
667 XButtonPressedEvent *btn = (XButtonPressedEvent *) dummy;
|
|
|
668
|
|
|
669 btn->type = ButtonPress;
|
|
|
670 btn->serial = 0;
|
|
|
671 btn->send_event = 0;
|
|
|
672 btn->display = XtDisplay (daddy);
|
|
|
673 btn->window = XtWindow (daddy);
|
|
|
674 if (eev)
|
|
|
675 {
|
|
|
676 Position shellx, shelly, framex, framey;
|
|
412
|
677 Widget shell = XtParent (daddy);
|
|
165
|
678 Arg al [2];
|
|
0
|
679 btn->time = eev->timestamp;
|
|
|
680 btn->button = eev->event.button.button;
|
|
|
681 btn->root = RootWindowOfScreen (XtScreen (daddy));
|
|
|
682 btn->subwindow = (Window) NULL;
|
|
|
683 btn->x = eev->event.button.x;
|
|
|
684 btn->y = eev->event.button.y;
|
|
412
|
685 XtSetArg (al [0], XtNx, &shellx);
|
|
|
686 XtSetArg (al [1], XtNy, &shelly);
|
|
|
687 XtGetValues (shell, al, 2);
|
|
165
|
688 XtSetArg (al [0], XtNx, &framex);
|
|
|
689 XtSetArg (al [1], XtNy, &framey);
|
|
|
690 XtGetValues (daddy, al, 2);
|
|
0
|
691 btn->x_root = shellx + framex + btn->x;
|
|
380
|
692 btn->y_root = shelly + framey + btn->y;
|
|
0
|
693 btn->state = ButtonPressMask; /* all buttons pressed */
|
|
|
694 }
|
|
|
695 else
|
|
|
696 {
|
|
|
697 /* CurrentTime is just ZERO, so it's worthless for
|
|
|
698 determining relative click times. */
|
|
|
699 struct device *d = get_device_from_display (XtDisplay (daddy));
|
|
|
700 btn->time = DEVICE_X_MOUSE_TIMESTAMP (d); /* event-Xt maintains this */
|
|
|
701 btn->button = 0;
|
|
|
702 XQueryPointer (btn->display, btn->window, &btn->root,
|
|
|
703 &btn->subwindow, &btn->x_root, &btn->y_root,
|
|
|
704 &btn->x, &btn->y, &btn->state);
|
|
|
705 }
|
|
|
706 }
|
|
|
707
|
|
|
708
|
|
|
709
|
|
|
710 static void
|
|
|
711 x_update_frame_menubar_internal (struct frame *f)
|
|
|
712 {
|
|
|
713 /* We assume the menubar contents has changed if the global flag is set,
|
|
|
714 or if the current buffer has changed, or if the menubar has never
|
|
|
715 been updated before.
|
|
|
716 */
|
|
|
717 int menubar_contents_changed =
|
|
|
718 (f->menubar_changed
|
|
|
719 || NILP (FRAME_MENUBAR_DATA (f))
|
|
|
720 || (!EQ (XFRAME_MENUBAR_DATA (f)->last_menubar_buffer,
|
|
|
721 XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f))->buffer)));
|
|
|
722
|
|
102
|
723 Boolean menubar_was_visible = XtIsManaged (FRAME_X_MENUBAR_WIDGET (f));
|
|
|
724 Boolean menubar_will_be_visible = menubar_was_visible;
|
|
|
725 Boolean menubar_visibility_changed;
|
|
185
|
726
|
|
0
|
727 if (menubar_contents_changed)
|
|
|
728 menubar_will_be_visible = set_frame_menubar (f, 0, 0);
|
|
|
729
|
|
|
730 menubar_visibility_changed = menubar_was_visible != menubar_will_be_visible;
|
|
|
731
|
|
282
|
732 if (!menubar_visibility_changed)
|
|
0
|
733 return;
|
|
|
734
|
|
|
735 /* Set menubar visibility */
|
|
282
|
736 (menubar_will_be_visible ? XtManageChild : XtUnmanageChild)
|
|
|
737 (FRAME_X_MENUBAR_WIDGET (f));
|
|
185
|
738
|
|
282
|
739 MARK_FRAME_SIZE_SLIPPED (f);
|
|
0
|
740 }
|
|
|
741
|
|
|
742 static void
|
|
|
743 x_update_frame_menubars (struct frame *f)
|
|
|
744 {
|
|
|
745 assert (FRAME_X_P (f));
|
|
|
746
|
|
|
747 x_update_frame_menubar_internal (f);
|
|
|
748
|
|
|
749 /* #### This isn't going to work right now that this function works on
|
|
|
750 a per-frame, not per-device basis. Guess what? I don't care. */
|
|
|
751 }
|
|
|
752
|
|
|
753 static void
|
|
|
754 x_free_frame_menubars (struct frame *f)
|
|
|
755 {
|
|
|
756 Widget menubar_widget;
|
|
|
757
|
|
|
758 assert (FRAME_X_P (f));
|
|
185
|
759
|
|
0
|
760 menubar_widget = FRAME_X_MENUBAR_WIDGET (f);
|
|
|
761 if (menubar_widget)
|
|
|
762 {
|
|
|
763 LWLIB_ID id = XFRAME_MENUBAR_DATA (f)->id;
|
|
|
764 lw_destroy_all_widgets (id);
|
|
|
765 XFRAME_MENUBAR_DATA (f)->id = 0;
|
|
|
766 }
|
|
|
767 }
|
|
|
768
|
|
|
769 static void
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770 x_popup_menu (Lisp_Object menu_desc, Lisp_Object event)
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771 {
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772 int menu_id;
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773 struct frame *f = selected_frame ();
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774 widget_value *data;
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775 Widget parent;
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776 Widget menu;
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412
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777 struct Lisp_Event *eev = NULL;
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0
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778 XEvent xev;
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272
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779 Lisp_Object frame;
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0
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780
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781 XSETFRAME (frame, f);
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782 CHECK_X_FRAME (frame);
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783 parent = FRAME_X_SHELL_WIDGET (f);
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784
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785 if (!NILP (event))
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786 {
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787 CHECK_LIVE_EVENT (event);
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788 eev= XEVENT (event);
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789 if (eev->event_type != button_press_event
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790 && eev->event_type != button_release_event)
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791 wrong_type_argument (Qmouse_event_p, event);
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792 }
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793 else if (!NILP (Vthis_command_keys))
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794 {
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795 /* if an event wasn't passed, use the last event of the event sequence
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796 currently being executed, if that event is a mouse event */
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797 eev = XEVENT (Vthis_command_keys); /* last event first */
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798 if (eev->event_type != button_press_event
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799 && eev->event_type != button_release_event)
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800 eev = NULL;
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801 }
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802 make_dummy_xbutton_event (&xev, parent, eev);
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803
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804 if (SYMBOLP (menu_desc))
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805 menu_desc = Fsymbol_value (menu_desc);
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806 CHECK_CONS (menu_desc);
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807 CHECK_STRING (XCAR (menu_desc));
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808 data = menu_item_descriptor_to_widget_value (menu_desc, POPUP_TYPE, 1, 1);
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809
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810 if (! data) error ("no menu");
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185
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811
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0
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812 menu_id = new_lwlib_id ();
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813 menu = lw_create_widget ("popup", "popup" /* data->name */, menu_id, data,
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814 parent, 1, 0,
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815 popup_menu_selection_callback,
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816 popup_menu_down_callback);
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817 free_popup_widget_value_tree (data);
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818
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819 gcpro_popup_callbacks (menu_id);
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820
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821 /* Setting zmacs-region-stays is necessary here because executing a command
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822 from a menu is really a two-command process: the first command (bound to
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823 the button-click) simply pops up the menu, and returns. This causes a
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824 sequence of magic-events (destined for the popup-menu widget) to begin.
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825 Eventually, a menu item is selected, and a menu-event blip is pushed onto
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826 the end of the input stream, which is then executed by the event loop.
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185
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827
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0
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828 So there are two command-events, with a bunch of magic-events between
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829 them. We don't want the *first* command event to alter the state of the
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830 region, so that the region can be available as an argument for the second
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831 command.
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412
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832 */
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0
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833 if (zmacs_regions)
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834 zmacs_region_stays = 1;
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835
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836 popup_up_p++;
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837 lw_popup_menu (menu, &xev);
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838 /* this speeds up display of pop-up menus */
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839 XFlush (XtDisplay (parent));
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840 }
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841
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842
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843 void
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844 syms_of_menubar_x (void)
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845 {
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846 }
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847
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848 void
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849 console_type_create_menubar_x (void)
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850 {
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851 CONSOLE_HAS_METHOD (x, update_frame_menubars);
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852 CONSOLE_HAS_METHOD (x, free_frame_menubars);
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853 CONSOLE_HAS_METHOD (x, popup_menu);
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854 }
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855
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856 void
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412
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857 vars_of_menubar_x (void)
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398
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858 {
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859 last_popup_menu_selection_callback_id = (LWLIB_ID) -1;
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0
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860
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861 #if defined (LWLIB_MENUBARS_LUCID)
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862 Fprovide (intern ("lucid-menubars"));
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863 #elif defined (LWLIB_MENUBARS_MOTIF)
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864 Fprovide (intern ("motif-menubars"));
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865 #elif defined (LWLIB_MENUBARS_ATHENA)
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866 Fprovide (intern ("athena-menubars"));
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867 #endif
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868 }
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