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428
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1 /* Implements elisp-programmable dialog boxes -- 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 #include <config.h>
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25 #include "lisp.h"
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26
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27 #include "console-x.h"
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28 #include "EmacsFrame.h"
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29 #include "gui-x.h"
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30
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31 #include "buffer.h"
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32 #include "commands.h" /* zmacs_regions */
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33 #include "events.h"
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34 #include "frame.h"
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35 #include "gui.h"
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36 #include "opaque.h"
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37 #include "window.h"
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38
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39
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40 static void
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41 maybe_run_dbox_text_callback (LWLIB_ID id)
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42 {
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43 /* !!#### This function has not been Mule-ized */
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44 widget_value *wv;
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45 int got_some;
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46 wv = xmalloc_widget_value ();
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47 wv->name = (char *) "value";
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48 got_some = lw_get_some_values (id, wv);
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49 if (got_some)
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50 {
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51 Lisp_Object text_field_callback;
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52 char *text_field_value = wv->value;
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53 VOID_TO_LISP (text_field_callback, wv->call_data);
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54 if (text_field_value)
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55 {
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56 void *tmp = LISP_TO_VOID (list2 (text_field_callback,
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57 build_string (text_field_value)));
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58 popup_selection_callback (0, id, (XtPointer) tmp);
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59 xfree (text_field_value);
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60 }
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61 }
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62 free_widget_value (wv);
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63 }
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64
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65 static void
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66 dbox_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
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67 {
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68 /* This is called with client_data == -1 when WM_DELETE_WINDOW is sent
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69 instead of a button being selected. */
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70 struct device *d = get_device_from_display (XtDisplay (widget));
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71 struct frame *f = 0;
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72 Widget cur_widget = widget;
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73
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74 /* The parent which is actually connected to our EmacsFrame may be a
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75 ways up the tree. */
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76 while (!f && cur_widget)
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77 {
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78 f = x_any_window_to_frame (d, XtWindow (cur_widget));
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79 cur_widget = XtParent (cur_widget);
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80 }
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81
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82 if (popup_handled_p (id))
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83 return;
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84 assert (popup_up_p != 0);
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85 ungcpro_popup_callbacks (id);
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86 popup_up_p--;
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87 maybe_run_dbox_text_callback (id);
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88 popup_selection_callback (widget, id, client_data);
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89 lw_destroy_all_widgets (id);
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90
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91 /* The Motif dialog box sets the keyboard focus to itself. When it
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92 goes away we have to take care of getting the focus back
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93 ourselves. */
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94 #ifdef EXTERNAL_WIDGET
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95 /* #### Not sure if this special case is necessary. */
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96 if (!FRAME_X_EXTERNAL_WINDOW_P (f) && f)
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97 #else
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98 if (f)
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99 #endif
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100 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), FRAME_X_TEXT_WIDGET (f));
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101 }
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102
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103 static CONST char * CONST button_names [] = {
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104 "button1", "button2", "button3", "button4", "button5",
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105 "button6", "button7", "button8", "button9", "button10" };
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106
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107 /* can't have static frame locals because of some broken compilers */
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108 static char tmp_dbox_name [255];
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109
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110 static widget_value *
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111 dbox_descriptor_to_widget_value (Lisp_Object desc)
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112 {
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113 /* !!#### This function has not been Mule-ized */
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114 /* This function can GC */
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115 char *name;
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116 int lbuttons = 0, rbuttons = 0;
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117 int partition_seen = 0;
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118 int text_field_p = 0;
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119 int allow_text_p = 1;
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120 widget_value *prev = 0, *kids = 0;
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121 int n = 0;
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122 int count = specpdl_depth ();
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123 Lisp_Object wv_closure, gui_item;
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124
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125 CHECK_CONS (desc);
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126 CHECK_STRING (XCAR (desc));
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127 name = (char *) XSTRING_DATA (LISP_GETTEXT (XCAR (desc)));
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128 desc = XCDR (desc);
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129 if (!CONSP (desc))
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130 error ("dialog boxes must have some buttons");
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131
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132 /* Inhibit GC during this conversion. The reasons for this are
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133 the same as in menu_item_descriptor_to_widget_value(); see
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134 the large comment above that function. */
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135
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136 record_unwind_protect (restore_gc_inhibit,
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137 make_int (gc_currently_forbidden));
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138 gc_currently_forbidden = 1;
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139
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140 kids = prev = xmalloc_widget_value ();
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141
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142 /* Also make sure that we free the partially-created widget_value
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143 tree on Lisp error. */
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144
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145 wv_closure = make_opaque_ptr (kids);
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146 record_unwind_protect (widget_value_unwind, wv_closure);
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147 prev->name = (char *) "message";
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148 prev->value = xstrdup (name);
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149 prev->enabled = 1;
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150
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151 for (; !NILP (desc); desc = Fcdr (desc))
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152 {
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153 Lisp_Object button = XCAR (desc);
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154 widget_value *wv;
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155
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156 if (NILP (button))
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157 {
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158 if (partition_seen)
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159 error ("more than one partition (nil) seen in dbox spec");
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160 partition_seen = 1;
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161 continue;
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162 }
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163 CHECK_VECTOR (button);
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164 wv = xmalloc_widget_value ();
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165
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166 gui_item = gui_parse_item_keywords (button);
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167 if (!button_item_to_widget_value (gui_item, wv, allow_text_p, 1))
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168 {
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169 free_widget_value (wv);
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170 continue;
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171 }
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172
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173 if (wv->type == TEXT_TYPE)
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174 {
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175 text_field_p = 1;
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176 allow_text_p = 0; /* only allow one */
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177 }
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178 else /* it's a button */
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179 {
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180 allow_text_p = 0; /* only allow text field at the front */
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181 wv->value = xstrdup (wv->name); /* what a mess... */
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182 wv->name = (char *) button_names [n];
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183
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184 if (partition_seen)
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185 rbuttons++;
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186 else
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187 lbuttons++;
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188 n++;
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189
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190 if (lbuttons > 9 || rbuttons > 9)
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191 error ("too many buttons (9)"); /* #### this leaks */
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192 }
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193
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194 prev->next = wv;
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195 prev = wv;
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196 }
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197
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198 if (n == 0)
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199 error ("dialog boxes must have some buttons");
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200 {
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201 char type = (text_field_p ? 'P' : 'Q');
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202 widget_value *dbox;
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203 sprintf (tmp_dbox_name, "%c%dBR%d", type, lbuttons + rbuttons, rbuttons);
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204 dbox = xmalloc_widget_value ();
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205 dbox->name = tmp_dbox_name;
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206 dbox->contents = kids;
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207
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208 /* No more need to free the half-filled-in structures. */
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209 set_opaque_ptr (wv_closure, 0);
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210 unbind_to (count, Qnil);
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211 return dbox;
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212 }
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213 }
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214
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215 static void
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216 x_popup_dialog_box (struct frame* f, Lisp_Object dbox_desc)
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217 {
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218 int dbox_id;
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219 widget_value *data;
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220 Widget parent, dbox;
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221
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222 data = dbox_descriptor_to_widget_value (dbox_desc);
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223
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224 parent = FRAME_X_SHELL_WIDGET (f);
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225
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226 dbox_id = new_lwlib_id ();
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227 dbox = lw_create_widget (data->name, "dialog", dbox_id, data, parent, 1, 0,
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228 dbox_selection_callback, 0);
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229 lw_modify_all_widgets (dbox_id, data, True);
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230 lw_modify_all_widgets (dbox_id, data->contents, True);
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231 free_popup_widget_value_tree (data);
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232
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233 gcpro_popup_callbacks (dbox_id);
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234
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235 /* Setting zmacs-region-stays is necessary here because executing a
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236 command from a dialog is really a two-command process: the first
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237 command (bound to the button-click) simply pops up the dialog,
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238 and returns. This causes a sequence of magic-events (destined
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239 for the dialog widget) to begin. Eventually, a dialog item is
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240 selected, and a misc-user-event blip is pushed onto the end of
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241 the input stream, which is then executed by the event loop.
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242
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243 So there are two command-events, with a bunch of magic-events
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244 between them. We don't want the *first* command event to alter
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245 the state of the region, so that the region can be available as
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246 an argument for the second command. */
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247 if (zmacs_regions)
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248 zmacs_region_stays = 1;
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249
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250 popup_up_p++;
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251 lw_pop_up_all_widgets (dbox_id);
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252 }
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253
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254 void
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255 syms_of_dialog_x (void)
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256 {
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257 }
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258
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259 void
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260 console_type_create_dialog_x (void)
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261 {
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262 CONSOLE_HAS_METHOD (x, popup_dialog_box);
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263 }
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264
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265 void
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266 vars_of_dialog_x (void)
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267 {
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268 #if defined (LWLIB_DIALOGS_LUCID)
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269 Fprovide (intern ("lucid-dialogs"));
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270 #elif defined (LWLIB_DIALOGS_MOTIF)
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271 Fprovide (intern ("motif-dialogs"));
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272 #elif defined (LWLIB_DIALOGS_ATHENA)
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273 Fprovide (intern ("athena-dialogs"));
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274 #endif
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275 }
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