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428
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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 "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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35 #include "gui.h"
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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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84 strdup(). */
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85
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86 static widget_value *
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87 menu_item_descriptor_to_widget_value_1 (Lisp_Object desc,
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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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|
97 widget_value *wv;
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98 Lisp_Object wv_closure;
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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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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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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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109 char *string_chars = (char *) XSTRING_DATA (desc);
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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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120 }
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121 else
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122 {
|
|
436
|
123 wv->name = xstrdup (string_chars);
|
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428
|
124 wv->enabled = 1;
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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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130 }
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131 }
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132 else if (VECTORP (desc))
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133 {
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134 Lisp_Object gui_item = gui_parse_item_keywords (desc);
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135 if (!button_item_to_widget_value (gui_item, wv, 1,
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136 (menu_type == MENUBAR_TYPE
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137 && depth <= 1)))
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138 {
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139 /* :included form was nil */
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140 wv = NULL;
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141 goto menu_item_done;
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142 }
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143 }
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144 else if (CONSP (desc))
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145 {
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146 Lisp_Object incremental_data = desc;
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147 widget_value *prev = 0;
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148
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149 if (STRINGP (XCAR (desc)))
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150 {
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151 Lisp_Object key, val;
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152 Lisp_Object include_p = Qnil, hook_fn = Qnil, config_tag = Qnil;
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153 Lisp_Object active_p = Qt;
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154 Lisp_Object accel;
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155 int included_spec = 0;
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156 int active_spec = 0;
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157 wv->type = CASCADE_TYPE;
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158 wv->enabled = 1;
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159 wv->name = (char *) XSTRING_DATA (LISP_GETTEXT (XCAR (desc)));
|
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436
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160 wv->name = xstrdup (wv->name);
|
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428
|
161
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162 accel = gui_name_accelerator (LISP_GETTEXT (XCAR (desc)));
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163 wv->accel = LISP_TO_VOID (accel);
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164
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165 desc = Fcdr (desc);
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166
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167 while (key = Fcar (desc), KEYWORDP (key))
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168 {
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169 Lisp_Object cascade = desc;
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170 desc = Fcdr (desc);
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171 if (NILP (desc))
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172 signal_simple_error ("Keyword in menu lacks a value",
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173 cascade);
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174 val = Fcar (desc);
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175 desc = Fcdr (desc);
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176 if (EQ (key, Q_included))
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177 include_p = val, included_spec = 1;
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178 else if (EQ (key, Q_config))
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179 config_tag = val;
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180 else if (EQ (key, Q_filter))
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181 hook_fn = val;
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182 else if (EQ (key, Q_active))
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183 active_p = val, active_spec = 1;
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184 else if (EQ (key, Q_accelerator))
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185 {
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186 if ( SYMBOLP (val)
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187 || CHARP (val))
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188 wv->accel = LISP_TO_VOID (val);
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189 else
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190 signal_simple_error ("bad keyboard accelerator", val);
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191 }
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192 else if (EQ (key, Q_label))
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193 {
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194 /* implement in 21.2 */
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195 }
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196 else
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197 signal_simple_error ("Unknown menu cascade keyword", cascade);
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198 }
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|
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199
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200 if ((!NILP (config_tag)
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201 && NILP (Fmemq (config_tag, Vmenubar_configuration)))
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202 || (included_spec && NILP (Feval (include_p))))
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203 {
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|
204 wv = NULL;
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205 goto menu_item_done;
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206 }
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207
|
|
|
208 if (active_spec)
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|
|
209 active_p = Feval (active_p);
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|
|
210
|
|
|
211 if (!NILP (hook_fn) && !NILP (active_p))
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|
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212 {
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|
|
213 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
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214 if (filter_p || depth == 0)
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215 {
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|
|
216 #endif
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|
|
217 desc = call1_trapping_errors ("Error in menubar filter",
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218 hook_fn, desc);
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|
|
219 if (UNBOUNDP (desc))
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|
220 desc = Qnil;
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|
|
221 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
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|
|
222 }
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|
223 else
|
|
|
224 {
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|
225 widget_value *incr_wv = xmalloc_widget_value ();
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226 wv->contents = incr_wv;
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227 incr_wv->type = INCREMENTAL_TYPE;
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|
|
228 incr_wv->enabled = 1;
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|
|
229 incr_wv->name = wv->name;
|
|
436
|
230 incr_wv->name = xstrdup (wv->name);
|
|
428
|
231 /* This is automatically GC protected through
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|
232 the call to lw_map_widget_values(); no need
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|
233 to worry. */
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|
234 incr_wv->call_data = LISP_TO_VOID (incremental_data);
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|
235 goto menu_item_done;
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|
|
236 }
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|
|
237 #endif /* LWLIB_MENUBARS_LUCID || LWLIB_MENUBARS_MOTIF */
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|
|
238 }
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|
|
239 if (menu_type == POPUP_TYPE && popup_menu_titles && depth == 0)
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|
|
240 {
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|
|
241 /* Simply prepend three more widget values to the contents of
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242 the menu: a label, and two separators (to get a double
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|
243 line). */
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|
|
244 widget_value *title_wv = xmalloc_widget_value ();
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|
245 widget_value *sep_wv = xmalloc_widget_value ();
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|
|
246 title_wv->type = TEXT_TYPE;
|
|
436
|
247 title_wv->name = xstrdup (wv->name);
|
|
428
|
248 title_wv->enabled = 1;
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|
|
249 title_wv->next = sep_wv;
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|
|
250 sep_wv->type = SEPARATOR_TYPE;
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|
|
251 sep_wv->value = menu_separator_style ("==");
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|
|
252 sep_wv->next = 0;
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|
|
253
|
|
|
254 wv->contents = title_wv;
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|
|
255 prev = sep_wv;
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|
|
256 }
|
|
|
257 wv->enabled = ! NILP (active_p);
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|
|
258 if (deep_p && !wv->enabled && !NILP (desc))
|
|
|
259 {
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|
|
260 widget_value *dummy;
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|
|
261 /* Add a fake entry so the menus show up */
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|
|
262 wv->contents = dummy = xmalloc_widget_value ();
|
|
436
|
263 dummy->name = xstrdup ("(inactive)");
|
|
428
|
264 dummy->accel = LISP_TO_VOID (Qnil);
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|
265 dummy->enabled = 0;
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|
|
266 dummy->selected = 0;
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|
|
267 dummy->value = NULL;
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|
268 dummy->type = BUTTON_TYPE;
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|
269 dummy->call_data = NULL;
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|
270 dummy->next = NULL;
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271
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272 goto menu_item_done;
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|
|
273 }
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274
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|
|
275 }
|
|
|
276 else if (menubar_root_p)
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|
|
277 {
|
|
436
|
278 wv->name = xstrdup ("menubar");
|
|
428
|
279 wv->type = CASCADE_TYPE; /* Well, nothing else seems to fit and
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|
280 this is ignored anyway... */
|
|
|
281 }
|
|
|
282 else
|
|
|
283 {
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|
|
284 signal_simple_error ("Menu name (first element) must be a string",
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285 desc);
|
|
|
286 }
|
|
|
287
|
|
|
288 if (deep_p || menubar_root_p)
|
|
|
289 {
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|
|
290 widget_value *next;
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|
|
291 for (; !NILP (desc); desc = Fcdr (desc))
|
|
|
292 {
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|
|
293 Lisp_Object child = Fcar (desc);
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|
|
294 if (menubar_root_p && NILP (child)) /* the partition */
|
|
|
295 {
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|
|
296 if (partition_seen)
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|
|
297 error (
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|
|
298 "More than one partition (nil) in menubar description");
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|
|
299 partition_seen = 1;
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|
|
300 next = xmalloc_widget_value ();
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|
|
301 next->type = PUSHRIGHT_TYPE;
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|
|
302 }
|
|
|
303 else
|
|
|
304 {
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|
|
305 next = menu_item_descriptor_to_widget_value_1
|
|
|
306 (child, menu_type, deep_p, filter_p, depth + 1);
|
|
|
307 }
|
|
|
308 if (! next)
|
|
|
309 continue;
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|
|
310 else if (prev)
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|
|
311 prev->next = next;
|
|
|
312 else
|
|
|
313 wv->contents = next;
|
|
|
314 prev = next;
|
|
|
315 }
|
|
|
316 }
|
|
|
317 if (deep_p && !wv->contents)
|
|
|
318 wv = NULL;
|
|
|
319 }
|
|
|
320 else if (NILP (desc))
|
|
|
321 error ("nil may not appear in menu descriptions");
|
|
|
322 else
|
|
|
323 signal_simple_error ("Unrecognized menu descriptor", desc);
|
|
|
324
|
|
|
325 menu_item_done:
|
|
|
326
|
|
|
327 if (wv)
|
|
|
328 {
|
|
|
329 /* Completed normally. Clear out the object that widget_value_unwind()
|
|
|
330 will be called with to tell it not to free the wv (as we are
|
|
|
331 returning it.) */
|
|
|
332 set_opaque_ptr (wv_closure, 0);
|
|
|
333 }
|
|
|
334
|
|
|
335 unbind_to (count, Qnil);
|
|
|
336 return wv;
|
|
|
337 }
|
|
|
338
|
|
|
339 static widget_value *
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|
|
340 menu_item_descriptor_to_widget_value (Lisp_Object desc,
|
|
|
341 int menu_type, /* if this is a menubar,
|
|
|
342 popup or sub menu */
|
|
|
343 int deep_p, /* */
|
|
|
344 int filter_p) /* if :filter forms
|
|
|
345 should run now */
|
|
|
346 {
|
|
|
347 widget_value *wv;
|
|
|
348 int count = specpdl_depth ();
|
|
|
349 record_unwind_protect (restore_gc_inhibit,
|
|
|
350 make_int (gc_currently_forbidden));
|
|
|
351 gc_currently_forbidden = 1;
|
|
|
352 /* Can't GC! */
|
|
|
353 wv = menu_item_descriptor_to_widget_value_1 (desc, menu_type, deep_p,
|
|
|
354 filter_p, 0);
|
|
|
355 unbind_to (count, Qnil);
|
|
|
356 return wv;
|
|
|
357 }
|
|
|
358
|
|
|
359
|
|
|
360 #if defined LWLIB_MENUBARS_LUCID || defined LWLIB_MENUBARS_MOTIF
|
|
|
361 int in_menu_callback;
|
|
|
362
|
|
|
363 static Lisp_Object
|
|
|
364 restore_in_menu_callback (Lisp_Object val)
|
|
|
365 {
|
|
|
366 in_menu_callback = XINT(val);
|
|
|
367 return Qnil;
|
|
|
368 }
|
|
|
369 #endif /* LWLIB_MENUBARS_LUCID || LWLIB_MENUBARS_MOTIF */
|
|
|
370
|
|
|
371 #if 0
|
|
|
372 /* #### Sort of a hack needed to process Vactivate_menubar_hook
|
|
|
373 correctly wrt buffer-local values. A correct solution would
|
|
|
374 involve adding a callback mechanism to run_hook(). This function
|
|
|
375 is currently unused. */
|
|
|
376 static int
|
|
|
377 my_run_hook (Lisp_Object hooksym, int allow_global_p)
|
|
|
378 {
|
|
|
379 /* This function can GC */
|
|
|
380 Lisp_Object tail;
|
|
|
381 Lisp_Object value = Fsymbol_value (hooksym);
|
|
|
382 int changes = 0;
|
|
|
383
|
|
|
384 if (!NILP (value) && (!CONSP (value) || EQ (XCAR (value), Qlambda)))
|
|
|
385 return !EQ (call0 (value), Qt);
|
|
|
386
|
|
|
387 EXTERNAL_LIST_LOOP (tail, value)
|
|
|
388 {
|
|
|
389 if (allow_global_p && EQ (XCAR (tail), Qt))
|
|
|
390 changes |= my_run_hook (Fdefault_value (hooksym), 0);
|
|
|
391 if (!EQ (call0 (XCAR (tail)), Qt))
|
|
|
392 changes = 1;
|
|
|
393 }
|
|
|
394 return changes;
|
|
|
395 }
|
|
|
396 #endif
|
|
|
397
|
|
|
398
|
|
|
399 /* The order in which callbacks are run is funny to say the least.
|
|
|
400 It's sometimes tricky to avoid running a callback twice, and to
|
|
|
401 avoid returning prematurely. So, this function returns true
|
|
|
402 if the menu's callbacks are no longer gc protected. So long
|
|
|
403 as we unprotect them before allowing other callbacks to run,
|
|
|
404 everything should be ok.
|
|
|
405
|
|
|
406 The pre_activate_callback() *IS* intentionally called multiple times.
|
|
|
407 If client_data == NULL, then it's being called before the menu is posted.
|
|
|
408 If client_data != NULL, then client_data is a (widget_value *) and
|
|
|
409 client_data->data is a Lisp_Object pointing to a lisp submenu description
|
|
|
410 that must be converted into widget_values. *client_data is destructively
|
|
|
411 modified.
|
|
|
412
|
|
|
413 #### Stig thinks that there may be a GC problem here due to the
|
|
|
414 fact that pre_activate_callback() is called multiple times, but I
|
|
|
415 think he's wrong.
|
|
|
416
|
|
|
417 */
|
|
|
418
|
|
|
419 static void
|
|
|
420 pre_activate_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
|
|
|
421 {
|
|
|
422 /* This function can GC */
|
|
|
423 struct device *d = get_device_from_display (XtDisplay (widget));
|
|
|
424 struct frame *f = x_any_window_to_frame (d, XtWindow (widget));
|
|
|
425 Lisp_Object frame;
|
|
|
426 int count;
|
|
|
427
|
|
|
428 /* set in lwlib to the time stamp associated with the most recent menu
|
|
|
429 operation */
|
|
|
430 extern Time x_focus_timestamp_really_sucks_fix_me_better;
|
|
|
431
|
|
|
432 if (!f)
|
|
|
433 f = x_any_window_to_frame (d, XtWindow (XtParent (widget)));
|
|
|
434 if (!f)
|
|
|
435 return;
|
|
|
436
|
|
|
437 /* make sure f is the selected frame */
|
|
|
438 XSETFRAME (frame, f);
|
|
|
439 Fselect_frame (frame);
|
|
|
440
|
|
|
441 if (client_data)
|
|
|
442 {
|
|
|
443 /* this is an incremental menu construction callback */
|
|
|
444 widget_value *hack_wv = (widget_value *) client_data;
|
|
|
445 Lisp_Object submenu_desc;
|
|
|
446 widget_value *wv;
|
|
|
447
|
|
|
448 assert (hack_wv->type == INCREMENTAL_TYPE);
|
|
|
449 VOID_TO_LISP (submenu_desc, hack_wv->call_data);
|
|
|
450
|
|
|
451 /*
|
|
|
452 * #### Fix the menu code so this isn't necessary.
|
|
|
453 *
|
|
|
454 * Protect against reentering the menu code otherwise we will
|
|
|
455 * crash later when the code gets confused at the state
|
|
|
456 * changes.
|
|
|
457 */
|
|
|
458 count = specpdl_depth ();
|
|
|
459 record_unwind_protect (restore_in_menu_callback,
|
|
|
460 make_int (in_menu_callback));
|
|
|
461 in_menu_callback = 1;
|
|
|
462 wv = menu_item_descriptor_to_widget_value (submenu_desc, SUBMENU_TYPE,
|
|
|
463 1, 0);
|
|
|
464 unbind_to (count, Qnil);
|
|
|
465
|
|
|
466 if (!wv)
|
|
|
467 {
|
|
|
468 wv = xmalloc_widget_value ();
|
|
|
469 wv->type = CASCADE_TYPE;
|
|
|
470 wv->next = NULL;
|
|
|
471 wv->accel = LISP_TO_VOID (Qnil);
|
|
|
472 wv->contents = xmalloc_widget_value ();
|
|
|
473 wv->contents->type = TEXT_TYPE;
|
|
436
|
474 wv->contents->name = xstrdup ("No menu");
|
|
428
|
475 wv->contents->next = NULL;
|
|
|
476 wv->contents->accel = LISP_TO_VOID (Qnil);
|
|
|
477 }
|
|
|
478 assert (wv && wv->type == CASCADE_TYPE && wv->contents);
|
|
|
479 replace_widget_value_tree (hack_wv, wv->contents);
|
|
|
480 free_popup_widget_value_tree (wv);
|
|
|
481 }
|
|
|
482 else if (!POPUP_DATAP (FRAME_MENUBAR_DATA (f)))
|
|
|
483 return;
|
|
|
484 else
|
|
|
485 {
|
|
|
486 #if 0 /* Unused, see comment below. */
|
|
|
487 int any_changes;
|
|
|
488
|
|
|
489 /* #### - this menubar update mechanism is expensively anti-social and
|
|
|
490 the activate-menubar-hook is now mostly obsolete. */
|
|
|
491 any_changes = my_run_hook (Qactivate_menubar_hook, 1);
|
|
|
492
|
|
|
493 /* #### - It is necessary to *ALWAYS* call set_frame_menubar() now that
|
|
|
494 incremental menus are implemented. If a subtree of a menu has been
|
|
|
495 updated incrementally (a destructive operation), then that subtree
|
|
|
496 must somehow be wiped.
|
|
|
497
|
|
|
498 It is difficult to undo the destructive operation in lwlib because
|
|
|
499 a pointer back to lisp data needs to be hidden away somewhere. So
|
|
|
500 that an INCREMENTAL_TYPE widget_value can be recreated... Hmmmmm. */
|
|
|
501 if (any_changes ||
|
|
|
502 !XFRAME_MENUBAR_DATA (f)->menubar_contents_up_to_date)
|
|
|
503 set_frame_menubar (f, 1, 0);
|
|
|
504 #else
|
|
|
505 run_hook (Qactivate_menubar_hook);
|
|
|
506 set_frame_menubar (f, 1, 0);
|
|
|
507 #endif
|
|
|
508 DEVICE_X_MOUSE_TIMESTAMP (XDEVICE (FRAME_DEVICE (f))) =
|
|
|
509 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (XDEVICE (FRAME_DEVICE (f))) =
|
|
|
510 x_focus_timestamp_really_sucks_fix_me_better;
|
|
|
511 }
|
|
|
512 }
|
|
|
513
|
|
|
514 static widget_value *
|
|
|
515 compute_menubar_data (struct frame *f, Lisp_Object menubar, int deep_p)
|
|
|
516 {
|
|
|
517 widget_value *data;
|
|
|
518
|
|
|
519 if (NILP (menubar))
|
|
|
520 data = 0;
|
|
|
521 else
|
|
|
522 {
|
|
|
523 Lisp_Object old_buffer;
|
|
|
524 int count = specpdl_depth ();
|
|
|
525
|
|
|
526 old_buffer = Fcurrent_buffer ();
|
|
|
527 record_unwind_protect (Fset_buffer, old_buffer);
|
|
|
528 Fset_buffer ( XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer);
|
|
|
529 data = menu_item_descriptor_to_widget_value (menubar, MENUBAR_TYPE,
|
|
|
530 deep_p, 0);
|
|
|
531 Fset_buffer (old_buffer);
|
|
|
532 unbind_to (count, Qnil);
|
|
|
533 }
|
|
|
534 return data;
|
|
|
535 }
|
|
|
536
|
|
|
537 static int
|
|
|
538 set_frame_menubar (struct frame *f, int deep_p, int first_time_p)
|
|
|
539 {
|
|
|
540 widget_value *data;
|
|
|
541 Lisp_Object menubar;
|
|
|
542 int menubar_visible;
|
|
|
543 long id;
|
|
|
544 /* As for the toolbar, the minibuffer does not have its own menubar. */
|
|
|
545 struct window *w = XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f));
|
|
|
546
|
|
|
547 if (! FRAME_X_P (f))
|
|
|
548 return 0;
|
|
|
549
|
|
|
550 /***** first compute the contents of the menubar *****/
|
|
|
551
|
|
|
552 if (! first_time_p)
|
|
|
553 {
|
|
|
554 /* evaluate `current-menubar' in the buffer of the selected window
|
|
|
555 of the frame in question. */
|
|
|
556 menubar = symbol_value_in_buffer (Qcurrent_menubar, w->buffer);
|
|
|
557 }
|
|
|
558 else
|
|
|
559 {
|
|
|
560 /* That's a little tricky the first time since the frame isn't
|
|
|
561 fully initialized yet. */
|
|
|
562 menubar = Fsymbol_value (Qcurrent_menubar);
|
|
|
563 }
|
|
|
564
|
|
|
565 if (NILP (menubar))
|
|
|
566 {
|
|
|
567 menubar = Vblank_menubar;
|
|
|
568 menubar_visible = 0;
|
|
|
569 }
|
|
|
570 else
|
|
|
571 menubar_visible = !NILP (w->menubar_visible_p);
|
|
|
572
|
|
|
573 data = compute_menubar_data (f, menubar, deep_p);
|
|
|
574 if (!data || (!data->next && !data->contents))
|
|
|
575 abort ();
|
|
|
576
|
|
|
577 if (NILP (FRAME_MENUBAR_DATA (f)))
|
|
|
578 {
|
|
|
579 struct popup_data *mdata =
|
|
|
580 alloc_lcrecord_type (struct popup_data, &lrecord_popup_data);
|
|
|
581
|
|
|
582 mdata->id = new_lwlib_id ();
|
|
|
583 mdata->last_menubar_buffer = Qnil;
|
|
|
584 mdata->menubar_contents_up_to_date = 0;
|
|
|
585 XSETPOPUP_DATA (FRAME_MENUBAR_DATA (f), mdata);
|
|
|
586 }
|
|
|
587
|
|
|
588 /***** now store into the menubar widget, creating it if necessary *****/
|
|
|
589
|
|
|
590 id = XFRAME_MENUBAR_DATA (f)->id;
|
|
|
591 if (!FRAME_X_MENUBAR_WIDGET (f))
|
|
|
592 {
|
|
|
593 Widget parent = FRAME_X_CONTAINER_WIDGET (f);
|
|
|
594
|
|
|
595 assert (first_time_p);
|
|
|
596
|
|
|
597 /* It's the first time we've mapped the menubar so compute its
|
|
|
598 contents completely once. This makes sure that the menubar
|
|
|
599 components are created with the right type. */
|
|
|
600 if (!deep_p)
|
|
|
601 {
|
|
|
602 free_popup_widget_value_tree (data);
|
|
|
603 data = compute_menubar_data (f, menubar, 1);
|
|
|
604 }
|
|
|
605
|
|
|
606
|
|
|
607 FRAME_X_MENUBAR_WIDGET (f) =
|
|
|
608 lw_create_widget ("menubar", "menubar", id, data, parent,
|
|
|
609 0, pre_activate_callback,
|
|
|
610 popup_selection_callback, 0);
|
|
|
611
|
|
|
612 }
|
|
|
613 else
|
|
|
614 {
|
|
|
615 lw_modify_all_widgets (id, data, deep_p ? True : False);
|
|
|
616 }
|
|
|
617 free_popup_widget_value_tree (data);
|
|
|
618
|
|
|
619 XFRAME_MENUBAR_DATA (f)->menubar_contents_up_to_date = deep_p;
|
|
|
620 XFRAME_MENUBAR_DATA (f)->last_menubar_buffer =
|
|
|
621 XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f))->buffer;
|
|
|
622 return menubar_visible;
|
|
|
623 }
|
|
|
624
|
|
|
625
|
|
|
626 /* Called from x_create_widgets() to create the initial menubar of a frame
|
|
|
627 before it is mapped, so that the window is mapped with the menubar already
|
|
|
628 there instead of us tacking it on later and thrashing the window after it
|
|
|
629 is visible. */
|
|
|
630 int
|
|
|
631 x_initialize_frame_menubar (struct frame *f)
|
|
|
632 {
|
|
|
633 return set_frame_menubar (f, 1, 1);
|
|
|
634 }
|
|
|
635
|
|
|
636
|
|
|
637 static LWLIB_ID last_popup_menu_selection_callback_id;
|
|
|
638
|
|
|
639 static void
|
|
|
640 popup_menu_selection_callback (Widget widget, LWLIB_ID id,
|
|
|
641 XtPointer client_data)
|
|
|
642 {
|
|
|
643 last_popup_menu_selection_callback_id = id;
|
|
|
644 popup_selection_callback (widget, id, client_data);
|
|
|
645 /* lw_destroy_all_widgets() will be called from popup_down_callback() */
|
|
|
646 }
|
|
|
647
|
|
|
648 static void
|
|
|
649 popup_menu_down_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
|
|
|
650 {
|
|
|
651 if (popup_handled_p (id))
|
|
|
652 return;
|
|
|
653 assert (popup_up_p != 0);
|
|
|
654 ungcpro_popup_callbacks (id);
|
|
|
655 popup_up_p--;
|
|
|
656 /* if this isn't called immediately after the selection callback, then
|
|
|
657 there wasn't a menu selection. */
|
|
|
658 if (id != last_popup_menu_selection_callback_id)
|
|
|
659 popup_selection_callback (widget, id, (XtPointer) -1);
|
|
|
660 lw_destroy_all_widgets (id);
|
|
|
661 }
|
|
|
662
|
|
|
663
|
|
|
664 static void
|
|
|
665 make_dummy_xbutton_event (XEvent *dummy,
|
|
|
666 Widget daddy,
|
|
|
667 struct Lisp_Event *eev)
|
|
|
668 /* NULL for eev means query pointer */
|
|
|
669 {
|
|
|
670 XButtonPressedEvent *btn = (XButtonPressedEvent *) dummy;
|
|
|
671
|
|
|
672 btn->type = ButtonPress;
|
|
|
673 btn->serial = 0;
|
|
|
674 btn->send_event = 0;
|
|
|
675 btn->display = XtDisplay (daddy);
|
|
|
676 btn->window = XtWindow (daddy);
|
|
|
677 if (eev)
|
|
|
678 {
|
|
|
679 Position shellx, shelly, framex, framey;
|
|
|
680 Arg al [2];
|
|
|
681 btn->time = eev->timestamp;
|
|
|
682 btn->button = eev->event.button.button;
|
|
|
683 btn->root = RootWindowOfScreen (XtScreen (daddy));
|
|
|
684 btn->subwindow = (Window) NULL;
|
|
|
685 btn->x = eev->event.button.x;
|
|
|
686 btn->y = eev->event.button.y;
|
|
|
687 shellx = shelly = 0;
|
|
|
688 #ifndef HAVE_WMCOMMAND
|
|
|
689 {
|
|
|
690 Widget shell = XtParent (daddy);
|
|
|
691
|
|
|
692 XtSetArg (al [0], XtNx, &shellx);
|
|
|
693 XtSetArg (al [1], XtNy, &shelly);
|
|
|
694 XtGetValues (shell, al, 2);
|
|
|
695 }
|
|
|
696 #endif
|
|
|
697 XtSetArg (al [0], XtNx, &framex);
|
|
|
698 XtSetArg (al [1], XtNy, &framey);
|
|
|
699 XtGetValues (daddy, al, 2);
|
|
|
700 btn->x_root = shellx + framex + btn->x;
|
|
|
701 btn->y_root = shelly + framey + btn->y;
|
|
|
702 btn->state = ButtonPressMask; /* all buttons pressed */
|
|
|
703 }
|
|
|
704 else
|
|
|
705 {
|
|
|
706 /* CurrentTime is just ZERO, so it's worthless for
|
|
|
707 determining relative click times. */
|
|
|
708 struct device *d = get_device_from_display (XtDisplay (daddy));
|
|
|
709 btn->time = DEVICE_X_MOUSE_TIMESTAMP (d); /* event-Xt maintains this */
|
|
|
710 btn->button = 0;
|
|
|
711 XQueryPointer (btn->display, btn->window, &btn->root,
|
|
|
712 &btn->subwindow, &btn->x_root, &btn->y_root,
|
|
|
713 &btn->x, &btn->y, &btn->state);
|
|
|
714 }
|
|
|
715 }
|
|
|
716
|
|
|
717
|
|
|
718
|
|
|
719 static void
|
|
|
720 x_update_frame_menubar_internal (struct frame *f)
|
|
|
721 {
|
|
|
722 /* We assume the menubar contents has changed if the global flag is set,
|
|
|
723 or if the current buffer has changed, or if the menubar has never
|
|
|
724 been updated before.
|
|
|
725 */
|
|
|
726 int menubar_contents_changed =
|
|
|
727 (f->menubar_changed
|
|
|
728 || NILP (FRAME_MENUBAR_DATA (f))
|
|
|
729 || (!EQ (XFRAME_MENUBAR_DATA (f)->last_menubar_buffer,
|
|
|
730 XWINDOW (FRAME_LAST_NONMINIBUF_WINDOW (f))->buffer)));
|
|
|
731
|
|
|
732 Boolean menubar_was_visible = XtIsManaged (FRAME_X_MENUBAR_WIDGET (f));
|
|
|
733 Boolean menubar_will_be_visible = menubar_was_visible;
|
|
|
734 Boolean menubar_visibility_changed;
|
|
|
735
|
|
|
736 if (menubar_contents_changed)
|
|
|
737 menubar_will_be_visible = set_frame_menubar (f, 0, 0);
|
|
|
738
|
|
|
739 menubar_visibility_changed = menubar_was_visible != menubar_will_be_visible;
|
|
|
740
|
|
|
741 if (!menubar_visibility_changed)
|
|
|
742 return;
|
|
|
743
|
|
|
744 /* Set menubar visibility */
|
|
|
745 (menubar_will_be_visible ? XtManageChild : XtUnmanageChild)
|
|
|
746 (FRAME_X_MENUBAR_WIDGET (f));
|
|
|
747
|
|
|
748 MARK_FRAME_SIZE_SLIPPED (f);
|
|
|
749 }
|
|
|
750
|
|
|
751 static void
|
|
|
752 x_update_frame_menubars (struct frame *f)
|
|
|
753 {
|
|
|
754 assert (FRAME_X_P (f));
|
|
|
755
|
|
|
756 x_update_frame_menubar_internal (f);
|
|
|
757
|
|
|
758 /* #### This isn't going to work right now that this function works on
|
|
|
759 a per-frame, not per-device basis. Guess what? I don't care. */
|
|
|
760 }
|
|
|
761
|
|
|
762 static void
|
|
|
763 x_free_frame_menubars (struct frame *f)
|
|
|
764 {
|
|
|
765 Widget menubar_widget;
|
|
|
766
|
|
|
767 assert (FRAME_X_P (f));
|
|
|
768
|
|
|
769 menubar_widget = FRAME_X_MENUBAR_WIDGET (f);
|
|
|
770 if (menubar_widget)
|
|
|
771 {
|
|
|
772 LWLIB_ID id = XFRAME_MENUBAR_DATA (f)->id;
|
|
|
773 lw_destroy_all_widgets (id);
|
|
|
774 XFRAME_MENUBAR_DATA (f)->id = 0;
|
|
|
775 }
|
|
|
776 }
|
|
|
777
|
|
|
778 static void
|
|
|
779 x_popup_menu (Lisp_Object menu_desc, Lisp_Object event)
|
|
|
780 {
|
|
|
781 int menu_id;
|
|
|
782 struct frame *f = selected_frame ();
|
|
|
783 widget_value *data;
|
|
|
784 Widget parent;
|
|
|
785 Widget menu;
|
|
|
786 struct Lisp_Event *eev = NULL;
|
|
|
787 XEvent xev;
|
|
|
788 Lisp_Object frame;
|
|
|
789
|
|
|
790 XSETFRAME (frame, f);
|
|
|
791 CHECK_X_FRAME (frame);
|
|
|
792 parent = FRAME_X_SHELL_WIDGET (f);
|
|
|
793
|
|
|
794 if (!NILP (event))
|
|
|
795 {
|
|
|
796 CHECK_LIVE_EVENT (event);
|
|
|
797 eev= XEVENT (event);
|
|
|
798 if (eev->event_type != button_press_event
|
|
|
799 && eev->event_type != button_release_event)
|
|
|
800 wrong_type_argument (Qmouse_event_p, event);
|
|
|
801 }
|
|
|
802 else if (!NILP (Vthis_command_keys))
|
|
|
803 {
|
|
|
804 /* if an event wasn't passed, use the last event of the event sequence
|
|
|
805 currently being executed, if that event is a mouse event */
|
|
|
806 eev = XEVENT (Vthis_command_keys); /* last event first */
|
|
|
807 if (eev->event_type != button_press_event
|
|
|
808 && eev->event_type != button_release_event)
|
|
|
809 eev = NULL;
|
|
|
810 }
|
|
|
811 make_dummy_xbutton_event (&xev, parent, eev);
|
|
|
812
|
|
|
813 if (SYMBOLP (menu_desc))
|
|
|
814 menu_desc = Fsymbol_value (menu_desc);
|
|
|
815 CHECK_CONS (menu_desc);
|
|
|
816 CHECK_STRING (XCAR (menu_desc));
|
|
|
817 data = menu_item_descriptor_to_widget_value (menu_desc, POPUP_TYPE, 1, 1);
|
|
|
818
|
|
|
819 if (! data) error ("no menu");
|
|
|
820
|
|
|
821 menu_id = new_lwlib_id ();
|
|
|
822 menu = lw_create_widget ("popup", "popup" /* data->name */, menu_id, data,
|
|
|
823 parent, 1, 0,
|
|
|
824 popup_menu_selection_callback,
|
|
|
825 popup_menu_down_callback);
|
|
|
826 free_popup_widget_value_tree (data);
|
|
|
827
|
|
|
828 gcpro_popup_callbacks (menu_id);
|
|
|
829
|
|
|
830 /* Setting zmacs-region-stays is necessary here because executing a command
|
|
|
831 from a menu is really a two-command process: the first command (bound to
|
|
|
832 the button-click) simply pops up the menu, and returns. This causes a
|
|
|
833 sequence of magic-events (destined for the popup-menu widget) to begin.
|
|
|
834 Eventually, a menu item is selected, and a menu-event blip is pushed onto
|
|
|
835 the end of the input stream, which is then executed by the event loop.
|
|
|
836
|
|
|
837 So there are two command-events, with a bunch of magic-events between
|
|
|
838 them. We don't want the *first* command event to alter the state of the
|
|
|
839 region, so that the region can be available as an argument for the second
|
|
|
840 command.
|
|
|
841 */
|
|
|
842 if (zmacs_regions)
|
|
|
843 zmacs_region_stays = 1;
|
|
|
844
|
|
|
845 popup_up_p++;
|
|
|
846 lw_popup_menu (menu, &xev);
|
|
|
847 /* this speeds up display of pop-up menus */
|
|
|
848 XFlush (XtDisplay (parent));
|
|
|
849 }
|
|
|
850
|
|
|
851
|
|
|
852 void
|
|
|
853 syms_of_menubar_x (void)
|
|
|
854 {
|
|
|
855 }
|
|
|
856
|
|
|
857 void
|
|
|
858 console_type_create_menubar_x (void)
|
|
|
859 {
|
|
|
860 CONSOLE_HAS_METHOD (x, update_frame_menubars);
|
|
|
861 CONSOLE_HAS_METHOD (x, free_frame_menubars);
|
|
|
862 CONSOLE_HAS_METHOD (x, popup_menu);
|
|
|
863 }
|
|
|
864
|
|
|
865 void
|
|
|
866 reinit_vars_of_menubar_x (void)
|
|
|
867 {
|
|
|
868 last_popup_menu_selection_callback_id = (LWLIB_ID) -1;
|
|
|
869 }
|
|
|
870
|
|
|
871 void
|
|
|
872 vars_of_menubar_x (void)
|
|
|
873 {
|
|
|
874 reinit_vars_of_menubar_x ();
|
|
|
875
|
|
|
876 #if defined (LWLIB_MENUBARS_LUCID)
|
|
|
877 Fprovide (intern ("lucid-menubars"));
|
|
|
878 #elif defined (LWLIB_MENUBARS_MOTIF)
|
|
|
879 Fprovide (intern ("motif-menubars"));
|
|
|
880 #elif defined (LWLIB_MENUBARS_ATHENA)
|
|
|
881 Fprovide (intern ("athena-menubars"));
|
|
|
882 #endif
|
|
|
883 }
|
